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  1. #1
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    Cleaning up dirty power...What's your flavor?

    There are a lot of different ways companies have found to tackle dirty power and there are those who are staunch believers in one technology over another.

    The more traditional way, is something like the AudioQuest Niagra 7000, Torus and others. These often incorporate the use of a large transformer.

    Others, such as PS Audio, believe in power regeneration.

    Some like Stromtank believe in battery power.

    Yet others, prefer to take a more passive approach such as Shunyata, Nordost and Ansuz. And even these differ fundamentally in how they treat or handle dirty power. Shunyata uses technologies such as NIC, CCI and QR/BB to tackle high frequency power line noise. As I understand it, the Ansuz products operate with noise cancellation and shifting the noise into a higher band.

    Finally, the last group doesn't believe in power conditioning at all or at least only partial (maybe for preamp/digital).

    What is your take? What's the clean power solution that has worked best for you?
    My Systems: http://www.audioshark.org/showthread...481#post158481

    "We can hear everything we measure, but we can't measure everything we hear. Let your ears be your guide."

    Dealer for: Aqua Hi-Fi, Aurender, AudioQuest Cables & Power Products, Berkeley Audio, Block Audio (distributor), Boulder Amplifiers, Bowers & Wilkins (B&W), Bryston, Clarisys Audio Loudspeakers (distributor), Classe’ Audio, Degritter Record Cleaning Machines, Esoteric, Finite Elemente, FirstWatt, Focal Loudspeakers and Headphones, GigaFoil, Harbeth Loudspeakers, Hegel, HiFi Man, Innuos, ISO Acoustics, Keces Power Supplies, Kharma Loudspeakers and Electronics, Kuzma Turntables, Lumin, Luxman, Magico Loudspeakers, MBL Speakers & Electronics, MSB Technologies, MySonicLabs Phono Cartridges, Nordost Cables, Ortofon, Pass Labs, Quadraspire, Rega Turntables and Electronics, Shunyata Research, STAX, Stein Music Products, Stillpoints, Soulution, VAC, Vicoustics, Viva Audio, VPI Industries, WireWorld Cables.

    https://suncoastaudio.com/
    Phone: 941-932-0282
    Facebook: https://www.facebook.com/Suncoast-Au...1105178279194/

  2. #2

    Re: Cleaning up dirty power...What's your flavor?

    What works best for me is buying components that have well built power supplies that were designed to filter normal household electricity and cleanly convert ac to dc and regulate the voltages.
    Micro Seiki SX-8000 air bearing table, SME 312s arm, SME 3012R arn, Dynavector XV-1s cartridge, Lyra Etna SL cartridge, ARC Ref 3 phono stage, Otari MX-55 2 track R2R, Ampex 350 tape repros, Roon Nucleus Plus music server, HiFi Rose 150B DAC, ARC Ref 6, ARC Ref 75 with KT-150s, Parasound JC5 amp , JBL 4345 speakers, Viero Equilibro Level 3 speaker cables, and Definitive Technology Ref subs.

    Reviewer for Positive Feedback

  3. #3
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    Re: Cleaning up dirty power...What's your flavor?

    I started with the Niagara 5000, then moved to the PS Audio P10, liking the idea of steady clean power, plus the ability to see what it was doing on the touch screen.

    Being more paranoid than anything, I had my amps plugged into the P10 whereas I should have plugged them into the wall, but that would have meant longer power cables.

    One night music was coming out on a great recording, and we had the volume pushing 75% and the system tripped not causing any issues other then turning things back on. One of the local gurus always said the P10 was holding back and you should try a simple distribution bar with star earth grounding.

    After that, it was a full on conversion to the Nordost QRT line giving more a push, less restriction with an across the board benefit. I learned about Ansuz after all this and would have drifted in that direction - but for now I’m happy with everything and no turning back.




    Sent from my iPhone using Tapatalk Pro
    Source Analog: Kuzma Stabi R w/4point 11 arm | Kuzma 50 Cartridge
    Source Digital: Aurender N10 | Brinkmann Nyquist MK II
    Amplification: Dan D’Agostino Momentum HD and M400’s | Boulder 508
    Speakers: Wilson Alexias
    Cabling: Nordost Leif, Norse, V2 and Odin
    Power and Isolation: Audio-Ultra Home & Room Power Foundation Performance Package with StromTank S1000 | HRS









  4. #4
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    Re: Cleaning up dirty power...What's your flavor?

    After hearing my friends system with Tripoint, if I had the level of equipment as you, I would go with them. Before the Tripoint he had PS Audio & Synergistic Research which it replaced.

  5. #5
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    Re: Cleaning up dirty power...What's your flavor?

    Oh, he has had the Troy for about 4 years. He just got the Orion last year. I'm not sure what flavor of ground wires he's using.

  6. #6
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    Re: Cleaning up dirty power...What's your flavor?

    Mike.......I have been a believer in power conditioning for many years, although I am fortunate to have relatively clean utility power for my home from a dedicated power transformer that is not shared. That is one of the advantages of living on a large enough piece of property that the power company had no choice but to provide me with my own transformer. Typically the incoming THD on my AC utility service is in the range of 1.6%.

    Initially I got into power conditioning when I built my home by installing 20 amp dedicated outlets for my audio system. The living room sound system has three dedicated circuits, one each to PS Audio Soloist Premier SE outlets, two for the audio rack and one for the subwoofer. In the years that followed I installed two power conditioners, PS Audio Power Plant Premier's, choosing to go the AC regeneration route over totally passive. The living room system now uses a single PS Audio P10 AC regenerator powered by one dedicated 20 amp circuit that supports all source components and the preamplifier. The power amplifier is powered through a Furutech Flux 50 directly into the second dedicated 20 amp circuit. The PS Audio P10 does a better job of lowering THD and regulating output voltage than the Power Plant premiers managed. I just checked the P10 and see that incoming THD is 1.6%, and the 120 volt regulated output shows 0.2% THD. The living room sound system definitely benefits from clean power.

    When I built the two room addition to my home for my recording studio I installed a dedicated 100 amp sub-panel and provided two dedicated circuits for my two channel sound system and two dedicated circuits for my home theater system. The home theater processor and source components are powered through a PS Audio Power Plant Premier. The two channel sound system is powered from a PurePower 2000 AC regenerator with battery backup that is itself fed power from a PS Audio Soloist Premier SE outlet through a Furutech Flux 50.

    Between having relatively clean incoming utility power that is further enhanced with AC regeneration, dedictaed 20 amp circuits, high quality receptacles, along with whole home commercial surge protection installed at my service panel, I am comfortable knowing I have clean AC power for my audio components. The sound from both systems is excellent, dynamic, and dead quiet. In addition, all source components, AC regenerators, and power amplifiers are powered using 2 meter Wireworld Silver Electra power cables. I am pleased with the results and consider the expense and effort worth it.
    Dan

    STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital coax,
    Sonos Connect, Stillpoints Ultra SS & Ultra Mini, PurePower 2000, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Sonus faber Amati Anniversario

    LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205 Signal Sleuth, Sonos Connect, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable,
    Sony DAT 60ES, Nakamichi BX-300, Micro Seiki DD40 w/m505A tonearm, Ortofon Cadenza Blue, PS Audio P10, Furutech Flux 50, Stillpoints Ultra Mini, PMC EB1i, JL Audio f113

    VINTAGE - McIntosh 4300V, McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, JBL 4312A

  7. #7

    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by matt_zak View Post
    After hearing my friends system with Tripoint, if I had the level of equipment as you, I would go with them. Before the Tripoint he had PS Audio & Synergistic Research which it replaced.
    I have never heard Miguel's power conditioner but I use the Troy Elite with Thor SE & Emperor mkii grounding cables which I highly recommend. My system always sounded good to my ears before Tripoint was introduced but what it does in terms of musical immersion is second to none IMO.

    Dave
    Speaker: Rockport Avior & Mira, B&W 803 D
    Amp: Nagra HD Monos, McIntosh Mc303 & 601
    Pre: Nagra HD pre
    Source: Esoteric K-01X & G-01, Aurender W20
    Cable: Transparent Ref Gen 5 SC & Ref XL PC
    Grounding: Tripoint Elite, Thor SE, Emperor Mkii

  8. #8
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    Re: Cleaning up dirty power...What's your flavor?

    Like Dan and I have said this for years, if you can depending on where you live and what you live in, get the incoming utility power cleaned first. FPL and my electrician took care of mine not to mention corrected a ground fault at my home. Once thats done, add dedicated lines from a separate breaker panel to your listening room. Then if needed add more power conditioning.
    2chl : Vincent Sp331MkII, W4S STP-SE Stage 2, Kef 201/2, KEF 140, Vapor Breeze, Lumin, Bryston CD, BHA-1, Quicksilver Headamp, HD650, HD800s, HD820's, Dan Clark 1.1, Focal Stellia, OPPO 203, 105. ( Boxed up: Pass Xa-30.5, VPI Classic, Dynavector DV-20XL, Manley Chinook, Cadenza Bronze)

  9. #9
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by mep View Post
    What works best for me is buying components that have well built power supplies that were designed to filter normal household electricity and cleanly convert ac to dc and regulate the voltages.
    Exactly!
    Well designed hi-fi components can deal with dirty electricity and also not be the cause of dirty electricity.

  10. #10
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    Re: Cleaning up dirty power...What's your flavor?

    Been using a Torus RM20 for years. In the current house, I have 50 amps (of the 300 amp home service) dedicated to the main system (which is an integrated AV system). One 20 amp circuit, where the Torus is plugged into and the two channel stuff is run through. I also have two 15 amp dedicated circuits.

    I have other conditioners that I own too but use in secondary systems. I have a couple of Richard Gray units in one system and an old Vansevers in another, among others.

    The first time I got a demo of the Torus, I had a friend helping out in a local audio store. He hated amps plugged into conditions. They had Ayre monoblocks plugged into the Torus in one room. He told me I had to hear it. So he played something and then unplugged the amps from the conditioner and played it again. Sold me.
    Main System - Lumin U2, Modwright LS36.5 DM Preamp, VTV Purifi 1ET-7040SA with tube buffer, EMM Labs DAC 2X (ver. 2), Torus RM-20, Thiel CS 3.7s, 2 Rel S/812 subs
    Back-up 1 - Premium Audio mini Gan Amp, Oppo 103D, 2 Richard Gray cond, Selah SA-2s, Sumiko S5 sub, Teac UD-503 DAC, Carver (modded) C-9
    Back-up 2 - Onkyo TX-NR797, Panasonic DP-UB820, Vansevers cond, B&W P6s, PowerSoundAudio S1500 sub

  11. #11
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    Re: Cleaning up dirty power...What's your flavor?

    Dan - have you ever compared the regeneration unit to the conditioner? It's interesting to see the journeys, many of you have tried different types and methodologies of conditioners and then moved on to something else.

    I'm curious, how many of you use a device to measure the results? Do you believe the measurements clearly align with what you're hearing?
    My Systems: http://www.audioshark.org/showthread...481#post158481

    "We can hear everything we measure, but we can't measure everything we hear. Let your ears be your guide."

    Dealer for: Aqua Hi-Fi, Aurender, AudioQuest Cables & Power Products, Berkeley Audio, Block Audio (distributor), Boulder Amplifiers, Bowers & Wilkins (B&W), Bryston, Clarisys Audio Loudspeakers (distributor), Classe’ Audio, Degritter Record Cleaning Machines, Esoteric, Finite Elemente, FirstWatt, Focal Loudspeakers and Headphones, GigaFoil, Harbeth Loudspeakers, Hegel, HiFi Man, Innuos, ISO Acoustics, Keces Power Supplies, Kharma Loudspeakers and Electronics, Kuzma Turntables, Lumin, Luxman, Magico Loudspeakers, MBL Speakers & Electronics, MSB Technologies, MySonicLabs Phono Cartridges, Nordost Cables, Ortofon, Pass Labs, Quadraspire, Rega Turntables and Electronics, Shunyata Research, STAX, Stein Music Products, Stillpoints, Soulution, VAC, Vicoustics, Viva Audio, VPI Industries, WireWorld Cables.

    https://suncoastaudio.com/
    Phone: 941-932-0282
    Facebook: https://www.facebook.com/Suncoast-Au...1105178279194/

  12. #12
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    Re: Cleaning up dirty power...What's your flavor?

    This is an interesting thread for me. I have had numerous electrical issues since moving into this home 12 years ago and have tried many different type power conditioners. All with limited sucess until recently.
    A crew from my electrical Co. was doing some work down the street and I approached them concerning the noise I am experiencing on my line. They came down to my house and found the "drop" from the pole was very old and frayed, had several splices and was run to a pole across the street.
    They ran a new drop from a closer pole eliminating the splices and providing new wire. However when doing so they noticed some abnormalities in the supplied power. This led them to a local sub station that was used many years ago by a now defunct mfg plant. It had been upgraded several years back but for whatever reason (unknown to me) it was passing or generating the noise. The crew put in a work order to correct the problem and recently did so. This was a noticeable improvement on my system.
    So as several of the above posters have reported, start with your incoming power first.
    Now I am going to retry several power conditioners to see what they do now that my incoming power is up to snuff.
    As a side note, I've noticed that the German magazine "Stereo" identifies the electrical phase of the power plug at the end of each review. If you notice, they are all different.
    As a builder and tweaker of equipment, checking and correcting the input transformer for proper phasing and lowest noise, is one of the things that is commonly done.
    Which leads to the question as to why don't any of the power conditioners have a "phase" switch on each receptacle? (remember inverting cheater plugs to reduce hum and noise?)
    My System
    Acoustic Revive RTP-4
    Innuos Pulsar
    Lampizator BALTIC4
    Cary SLP-05
    Pass XA30.5 or
    Line Magnetic 845ia
    Reference 3A Reflector's
    Pr SVS SB3000 Subs
    Cables & Tubes "subject to change without notification".
    Complete system on battery power/solar
    Core Audio Design Rack
    DIY bass traps and custom curved diffusors.

  13. #13
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Mike View Post
    Dan - have you ever compared the regeneration unit to the conditioner? It's interesting to see the journeys, many of you have tried different types and methodologies of conditioners and then moved on to something else.

    I'm curious, how many of you use a device to measure the results? Do you believe the measurements clearly align with what you're hearing?
    Mike.......Yes, I have made a couple of comparisons of passive power conditioning to active AC regeneration. I tried PS Audio's Dectet, as well as using the PS Audio Soloist Premier SE receptacles at the wall with no other conditioners. I have also used the SurgeX FX2 power conditioner and still have it powering my widescreen TV, Oppo UDP-203, and DirecTV satellite receiver in the living room. I borrowed a used McIntosh MPC1500 over a weekend that was traded in to my McIntosh dealer and tried it in the studio system in place of the PurePower 2000. The MPC1500 was disappointing. I could tell no difference with the system plugged directly into the wall versus plugged into the McIntosh power conditioner. I chalked it up to the fact that I already have low THD on my incoming utility power. I wanted to like the MPC1500 but it did not impress me. I have found my best results for improved low noise backgrounds come from AC regeneration. The PS Audio Power Plant Premier's, which I owned four at one point, produced an immediate and audible improvement in being able to hear more clearly the micro details. The newer PS Audio P10 is even better and I prefer its passive cooling. The PurePower 2000 has always been impressive in the studio system helping to deliver an inky black background and no restriction to dynamics. The battery backup is icing on the cake and ensures my Aurender N10 doesn't loose power during occasional utility power interruptions.

    I have always been interested in the Torus Isolation Power Conditioners. When I built the studio addition on my home I gave consideration to the Torus wall mount 60 amp model, but ultimately decided on the PurePower 2000 with battery backup. There are so many different routes that can be traveled when it comes to power conditioning it can be dizzying to make a choice on which way to go. I have been quite satisfied with active AC regeneration. It not only allows me to have extremely low THD on the AC to my components, it also affords me automatic voltage regulation. My utility transformer delivers a steady 124 volts to my service panel. Being able to control the voltage at a steady 120 volts to my equipment despite the incoming voltage level is advantageous to me.
    Dan

    STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital coax,
    Sonos Connect, Stillpoints Ultra SS & Ultra Mini, PurePower 2000, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Sonus faber Amati Anniversario

    LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205 Signal Sleuth, Sonos Connect, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable,
    Sony DAT 60ES, Nakamichi BX-300, Micro Seiki DD40 w/m505A tonearm, Ortofon Cadenza Blue, PS Audio P10, Furutech Flux 50, Stillpoints Ultra Mini, PMC EB1i, JL Audio f113

    VINTAGE - McIntosh 4300V, McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, JBL 4312A

  14. #14
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    Re: Cleaning up dirty power...What's your flavor?

    They all have plusses and minutes, but the proof is in the listening. I have had Richard Gray (I use this for my router and modem in a separate circuit. I just got rid of my Synergistic Research Galleleo power cell 10 in favor of my Audioquest 1000. I will be greeting the 5000 or 7000 though as they are each a step up from each other. They work in my system. I've had Shunyata in the house as well as Nordost, but in the end the AQ is better for my ears. Tonality is spot on and it gives me the blackest background, which to me is very important. I have noticed a shift into the middle of the soundstage when I went from SR to the small AQ. It's tighter, but plenty wide when the music calls for it. Bass also tightened up in my room.

    Teh SR is not slouch either and the Shunyata would be my second choice as I loved it in my room.

  15. #15

    Re: Cleaning up dirty power...What's your flavor?

    I am using a Topaz Isolation Transformer straight out of a 20 amp dedicated line. Look for a discussion introduced by John Swenson (Uptone Audio) about the correct way to use these. They are available only on Ebay (cheap) and you have to get the right model with an ultra low capacitance rating of .0005. These are unique for that. I believe Swenson stresses these should not be used with a conditioner! See his posts on this for the particulars of how to set it up.

    I then run the power from the Topaz to a 12 outlet Richard Gray 1200c which has two large parallel chokes to provide on demand high current and load impedance matching. In comparison to using a conditioner like the Denali and Niagara, I found the RG to provide more dynamics. (I did like the Niagara a lot though.)

    I am only running my server, switch, dac and subs through the RG and Topaz as the amps produced too much hum from the Topaz for me. Instead the amps (both speaker and mono's) go to dedicated 20 amp lines.

    My wall outlets measure up to 600 mV noise before the Topaz and 70 mV after. Curiously, that figure is 120 mV before turning on my amps. Anyone have an idea why turning on amps would lower the measured line noise?
    Source: Taiko Audio Server, Cisco 2960 Switch, Gigafoil, Lampizator Pacific Dac. Amp: Bakoon 13r Speakers: AvantGarde Duo Mezzo XD, Cables: Alan Maher Designs Power, Duelund Speaker, Shunyata Sigma IC's Audioquest Diamond ethernet. Room Treatment Vicoustic.

  16. #16
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    Re: Cleaning up dirty power...What's your flavor?

    I use a Purepower 1500+ regenerator with battery backup. Where I live in the summertime there are a lot of brown-outs and the unit keeps everything powered up seamlessly when I lose power. I run all my equipment through it even my amps with no loss of dynamics.

    You can also run it on pure battery power which gives a little blacker background but leading edges are a little rounded and is less dynamic.
    Joe

    Main: Jay's Audio CDT2mk.2 transport & Audio Mirror tubadour III SE DAC, Lyra Kleos SL Cartridge, VPI Classic III with 3D tone arm, K&K Audio premium maxxed-out phonostage, Supratek Sauvignon (highly modded) Tube preamp, Coincident Speaker Tech 300b Frankenstein mk.2 mono blocks, First Watt SIT-3 amp, Horning Eufrodite Ellipse speakers, PurePower 1500+,PI Audio DigiBuss

  17. #17

    Re: Cleaning up dirty power...What's your flavor?

    I’m using sound apllication conditioner, older model. Not sure which club this brand belong to, i guess passive approach group.

    It sound most musical and no dynamic restriction than past conditioners that i tried to.

    They may not popular compare to other brand that we used to discuss here, if you have a chance to try, highly recommended to get listen.
    Jesse

    Thales Slim II ( EMT 75G) , Audio Technica ART-9
    Lumin X1 - Melco N1A/2
    Accuphase 2420, A48, C37
    Tannoy Kenn. GR

    Cables: Ansuz Mainz (Dtc,diamond) PC - Shunyata Alpha Digital PC - Western Electric IC - Western Electric 1960 SC - Audioquest Vodka Ethernet
    Power Cond: Sound Application SA-240TZ

  18. #18
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    Re: Cleaning up dirty power...What's your flavor?

    Shunyata. Their gear works so well I have no desire to try another vendor.
    Bud

    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD
    Pass XP-22 pre, X600.5 amps
    Magico S5 MKII Mcast Rose speakers, SPOD spikes

    Shunyata Triton v3/Typhon QR for source, Denali 2000 (2) for amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson four shelf maple rack, Micropoint brass footers
    Three 20 amp circuits.

  19. #19

    Re: Cleaning up dirty power...What's your flavor?

    Symmetrical Power Balanced Transformers by 512 Engineering/Tim Marutani.

    This product reduces the noise floor to a value that is lower than any other noise reduction and grounding method I’ve tried before by a significant order of magnitude.

    The resulting musical improvement is greater than any other audio component change that has been installed in my system.

    With the balanced transformer, music comes alive and as close to a real musical event as I’ve ever heard in my room by far.

    Currently have a (demo) 5KVa unit for sources and a 10kVa unit for amps. Awaiting delivery of a high current 10kVa unit that will be used on the amps, and the existing 10kVa unit will be switched to sources.


    Sent from my iPhone using Tapatalk
    Rockport Lyra speakers; TotalDac Amp-1 mono blocks; four box CH Precision L1/X1 pre/power supply monos; CH precision P1/X1 phono/power supply; TotalDac d1-driver monos; Pacific Microsonics Model 2 DAC; TotalDac d1-12 MkII DAC with two reclockers; Kodo The Beat Turnatable with LT Schroder magnesium tonearm and Lyra Atlas cart; Taiko Extreme server; Kalista Dreamplayer CD Transport; Taiko Audio Daiza Platforms; Nordost Odin2 Power Cords and Analog ICs; 512 Engineering/Tim Marutani Balanced Transformers (30 amp for sources; 50 amp for amps); Rives designed dedicated room.

  20. #20
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    Re: Cleaning up dirty power...What's your flavor?

    What works for me is fixing the nasty power before it gets into your home. Once you and your power company and electrician are satisfied that your ground is proper and the power into your home is clean, then you can start working on wiring , and fancy power conditioners and regenerators. . In my case FPL found a bad transformer feeding my block, my home is the first house on that leg and my ground was not sufficient enough for the sandy soil. Cost FREEBIE
    2chl : Vincent Sp331MkII, W4S STP-SE Stage 2, Kef 201/2, KEF 140, Vapor Breeze, Lumin, Bryston CD, BHA-1, Quicksilver Headamp, HD650, HD800s, HD820's, Dan Clark 1.1, Focal Stellia, OPPO 203, 105. ( Boxed up: Pass Xa-30.5, VPI Classic, Dynavector DV-20XL, Manley Chinook, Cadenza Bronze)

  21. #21
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    Re: Cleaning up dirty power...What's your flavor?

    Over the weekend I checked grounding on my amps, moved cables and wires around behind my rack. I got rid of some noise, not all. This week I am going to try and land a new ground rod and maybe a subpanel. Pulled a little 100 amp off a job. I would rather not use anything and clean up what I have with good practices.
    First Sound Mark3SI preamp. Audion Black Shadow 845 SET Monoblocks. Mojo Audio Deja Vu Server. Mojo Audio Mystic 3 DAC. Linear Solution Ethernet Switch. Gigafoil with LPS. STST Motus II TT with Vertere SG1 arm, Hana ML Cartridge, Allnic H1201 phono pre. Pure Audio Project Trio 15 Horn speakers with Mundord Supreme oil caps. Power via 10 awg Oyaide cable from panel to custom distribution strip feeding front end. Oyaide dedicated10 AWG branch circuits from panel to each amp. Inakustik speaker and interconnect cables, Genesis Interconnect.
    Kingrexelectric.com Lyncole certified grounding specialist.

  22. #22
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    Over the weekend I checked grounding on my amps, moved cables and wires around behind my rack. I got rid of some noise, not all. This week I am going to try and land a new ground rod and maybe a subpanel. Pulled a little 100 amp off a job. I would rather not use anything and clean up what I have with good practices.
    I would rather not use anything and clean up what I have with good practices
    Yep
    2chl : Vincent Sp331MkII, W4S STP-SE Stage 2, Kef 201/2, KEF 140, Vapor Breeze, Lumin, Bryston CD, BHA-1, Quicksilver Headamp, HD650, HD800s, HD820's, Dan Clark 1.1, Focal Stellia, OPPO 203, 105. ( Boxed up: Pass Xa-30.5, VPI Classic, Dynavector DV-20XL, Manley Chinook, Cadenza Bronze)

  23. #23

    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by CPP View Post
    What works for me is fixing the nasty power before it gets into your home. Once you and your power company and electrician are satisfied that your ground is proper and the power into your home is clean, then you can start working on wiring , and fancy power conditioners and regenerators. . In my case FPL found a bad transformer feeding my block, my home is the first house on that leg and my ground was not sufficient enough for the sandy soil. Cost FREEBIE
    How did you know that your power had problems at the source To the point where you called in your power company? Did you measure it somehow?
    Source: Taiko Audio Server, Cisco 2960 Switch, Gigafoil, Lampizator Pacific Dac. Amp: Bakoon 13r Speakers: AvantGarde Duo Mezzo XD, Cables: Alan Maher Designs Power, Duelund Speaker, Shunyata Sigma IC's Audioquest Diamond ethernet. Room Treatment Vicoustic.

  24. #24
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Willco View Post
    How did you know that your power had problems at the source To the point where you called in your power company? Did you measure it somehow?
    When we bought our home ( ps I live at the beach) we installed a whole house generator,, the electrician and the generator company noticed some odd readings with the ground also found noise on the main line. We have always had some odd static pictures on the TV and hums on our phone line with is provided by the cable company since we moved in it was never right. The cable company said it was a power company problem. So we called our power company, who came out and installed a recording device to monitor the power feed . The next day the started working on a few poles up the road. The power company said it was a faulty transformer ( old age) . They also added another section of ground rod after they megged my ground. Thats it. Nothing magical
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  25. #25

    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by CPP View Post
    When we bought our home ( ps I live at the beach) we installed a whole house generator,, the electrician and the generator company noticed some odd readings with the ground also found noise on the main line. We have always had some odd static pictures on the TV and hums on our phone line with is provided by the cable company since we moved in it was never right. The cable company said it was a power company problem. So we called our power company, who came out and installed a recording device to monitor the power feed . The next day the started working on a few poles up the road. The power company said it was a faulty transformer ( old age) . They also added another section of ground rod after they megged my ground. Thats it. Nothing magical
    So maybe you were fortunate with your hums and static as a legitimate way to get your power company to come optimize your power. Without serious problems like that, the local power company's not going to come out to help us get out power source to audiophile standards.
    Source: Taiko Audio Server, Cisco 2960 Switch, Gigafoil, Lampizator Pacific Dac. Amp: Bakoon 13r Speakers: AvantGarde Duo Mezzo XD, Cables: Alan Maher Designs Power, Duelund Speaker, Shunyata Sigma IC's Audioquest Diamond ethernet. Room Treatment Vicoustic.

  26. #26
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Willco View Post
    So maybe you were fortunate with your hums and static as a legitimate way to get your power company to come optimize your power. Without serious problems like that, the local power company's not going to come out to help us get out power source to audiophile standards.
    All depends on where you live I would think unless one lives in some high raise or a condo community then all bets are off. .
    2chl : Vincent Sp331MkII, W4S STP-SE Stage 2, Kef 201/2, KEF 140, Vapor Breeze, Lumin, Bryston CD, BHA-1, Quicksilver Headamp, HD650, HD800s, HD820's, Dan Clark 1.1, Focal Stellia, OPPO 203, 105. ( Boxed up: Pass Xa-30.5, VPI Classic, Dynavector DV-20XL, Manley Chinook, Cadenza Bronze)

  27. #27
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    Re: Cleaning up dirty power...What's your flavor?

    I have 4 20A dedicated circuits. I use a pair of huge Toroidal transformers (Balanced Power Technologies) for my amps that can provide more instantaneous power than your 20amp wall socket. For my front end I use the Shunyata Research Hydra Triton.You can't get any blacker backgrounds then what I have! Ask Mike!
    George
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  28. #28

    Re: Cleaning up dirty power...What's your flavor?

    I seem to have a fair amount of noise coming in on my line as measured by my Entech meter. My topaz isolation transformer takes care of 95% of it for my sources. But it can’t handle my amps: 2 mono Sets and the sub amps from my Avantgarde duo mezzos.

    I have a 20 amp dedicated line for each pair of amps.

    Any suggestions for maybe a small,quiet isolation transformer for each of these dedicated lines?

    I wonder if I should recheck my grounding as well, as noise levels didn’t measure this high a couple of months ago.
    Source: Taiko Audio Server, Cisco 2960 Switch, Gigafoil, Lampizator Pacific Dac. Amp: Bakoon 13r Speakers: AvantGarde Duo Mezzo XD, Cables: Alan Maher Designs Power, Duelund Speaker, Shunyata Sigma IC's Audioquest Diamond ethernet. Room Treatment Vicoustic.

  29. #29
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    Re: Cleaning up dirty power...What's your flavor?

    I don't know what topaz you have, but I have a 2.4 KVA unit I was looking to sell. Ir's a pretty robust Transformer for only a few hundred dollars.
    First Sound Mark3SI preamp. Audion Black Shadow 845 SET Monoblocks. Mojo Audio Deja Vu Server. Mojo Audio Mystic 3 DAC. Linear Solution Ethernet Switch. Gigafoil with LPS. STST Motus II TT with Vertere SG1 arm, Hana ML Cartridge, Allnic H1201 phono pre. Pure Audio Project Trio 15 Horn speakers with Mundord Supreme oil caps. Power via 10 awg Oyaide cable from panel to custom distribution strip feeding front end. Oyaide dedicated10 AWG branch circuits from panel to each amp. Inakustik speaker and interconnect cables, Genesis Interconnect.
    Kingrexelectric.com Lyncole certified grounding specialist.

  30. #30
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    I don't know what topaz you have, but I have a 2.4 KVA unit I was looking to sell. Ir's a pretty robust Transformer for only a few hundred dollars.
    By the way, I would sit this Transformer in the basement next to the panel. I would find that line going to my audio source and put it on the load side of the Transformer down there.
    First Sound Mark3SI preamp. Audion Black Shadow 845 SET Monoblocks. Mojo Audio Deja Vu Server. Mojo Audio Mystic 3 DAC. Linear Solution Ethernet Switch. Gigafoil with LPS. STST Motus II TT with Vertere SG1 arm, Hana ML Cartridge, Allnic H1201 phono pre. Pure Audio Project Trio 15 Horn speakers with Mundord Supreme oil caps. Power via 10 awg Oyaide cable from panel to custom distribution strip feeding front end. Oyaide dedicated10 AWG branch circuits from panel to each amp. Inakustik speaker and interconnect cables, Genesis Interconnect.
    Kingrexelectric.com Lyncole certified grounding specialist.

  31. #31

    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    By the way, I would sit this Transformer in the basement next to the panel. I would find that line going to my audio source and put it on the load side of the Transformer down there.
    I have the same size Topaz and I think it does a good job. However it hums too loudly when the amps are plugged into it. No basement to my space so would have to be run outside which is not really practical.
    Source: Taiko Audio Server, Cisco 2960 Switch, Gigafoil, Lampizator Pacific Dac. Amp: Bakoon 13r Speakers: AvantGarde Duo Mezzo XD, Cables: Alan Maher Designs Power, Duelund Speaker, Shunyata Sigma IC's Audioquest Diamond ethernet. Room Treatment Vicoustic.

  32. #32

    Re: Cleaning up dirty power...What's your flavor?

    I started with an Audioquest Niagara 5000, but it always had a hum that was clearly audible from 7 ft away. I recently switched to a Torus RM20 / Bryston BIT20 and it is dead silent. Wished I would have gone with the RM20 / BIT20 originally, but I was paranoid about the 95 lb mass. Live and learn. Overall, an increase in clarity and bit better micro dynamics in upper mid-range to treble.

  33. #33
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    Re: Cleaning up dirty power...What's your flavor?

    Short of buying and learning to use an oscilloscope, is there a simple plug-in device that can measure THD in my power line? Seems to me from this thread that knowing my incoming power quality is helpful when deciding which power conditioning technology would work best in my home.
    Gary
    Main: Lumin A1, Accuphase E-650, Tannoy Canterbury GR, Shunyata, Audience
    Secondary: Lumin M1, Linton Heritage, Shunyata, Audience

  34. #34
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    Re: Cleaning up dirty power...What's your flavor?

    It took years to get here and a lot of great, good and not so good trials along the way but for me, cleaning up inbound power and grounding is a main foundation of the system;

    - Dual 10’ Ground Rods, CADWELD bonding of large-gauge solid copper ground leads, no clamps that come loose, corrode, etc....
    -
    Cutler-Hammer/EATON Copper Busbar Main panel & GE Sub-panel (model with copper busbar), 20-amp dedicated circuits, house panel re-organized / rebalanced
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    Environmental Potentials EP-2050 Wave-Form Regenerator & Surge Suppression on main house panel direct off the main & EP2750 Ground Filters on sub-panel and main panel feed
    - 5 Avatar Acoustics AfterBurner8 duplex outlets (no exotic metals, will go to Shunyata CopperCONNs when Caelin product-izes them); have tried 'fancy' exotic metal outlets from Furutech & others; don't like them
    - SHUNYATA TYPHON QR (the impact of this device is staggering)
    - SHUNYATA TRITON v3 (the impact of this is also staggering)
    - star-grounding all components to the ground-plane on the TRITON v3; Thank you (!) Shunyata for figuring this out and eliminating the flawed approach of star grounds not united with central power distribution!!!

    A solid power and ground-plane is essential and will be my first focus, always.

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  35. #35
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    Re: Cleaning up dirty power...What's your flavor?

    Good job on the panels and grounding SC.

  36. #36
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    Good job on the panels and grounding SC.
    Thanks....I did it in stages starting 4 years ago from the panels and ground rods + CADWELD on up and I could actually hear each incremental improvement.
    The EP2050 and EP2750 plus ground rounds actually brought a power improvement I could see as well on my Oppo 105D and Samsung UHD4K LED in the living room,....
    Legacy Audio Valor+Wavelet v2, Esoteric S-02 Amps HDPlex 300W, RevAudio Labs DC Umbilical, Esoteric Grandioso P1, P1PSU & dual D1 DACs, Cybershaft Prem Ltd OP21A 10 MHz Clock, Esoteric C-02X, Shunyata Everest 8000 & Altaira SG-NR hubs, Sigma SGC/CGC ground cables, VTX-Ag ground tails, AfterBurner8 duplexes, CSP Inc Q4B, S2B IEC plates, Shunyata Omega CLOCK-50 cables, Tubulus Concentus HDMI, Elrod Master Series Diamond SE & Masters Series Gold Power cords and Statement Gold XLRs, Diamond XLRs & Master Series Diamond XLRs, Shunyata OMEGA QR-s power cable, Anaconda Z-tron XLR, Elrod Statement Gold speaker cables, Adona Zero GX3, GX2, GX racks, Composite Audio CF-2010, Townshend Audio Podiums, HRS DPX Damping Plates, Stillpoints Ultra SS w/Ultra Bases, pArtScience 64-well, 2D QRD 3-inch SpaceArray Diffusors

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  37. #37
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    Re: Cleaning up dirty power...What's your flavor?

    I don't so much like filters on my gear. What I have been considering is a filter on the line that feeds my refrigerator. When that is running I can hear it through my amps and speakers. I could possibly look at replacing the run cap in the reefer, but I've wondered why audio companies don't design devices to clean up pollutants in your house.

  38. #38
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    Re: Cleaning up dirty power...What's your flavor?

    Recent convert to the PS Audio P15
    Marty

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  39. #39
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by SCAudiophile View Post
    Thanks....I did it in stages starting 4 years ago from the panels and ground rods + CADWELD on up and I could actually hear each incremental improvement.
    The EP2050 and EP2750 plus ground rounds actually brought a power improvement I could see as well on my Oppo 105D and Samsung UHD4K LED in the living room,....
    Wow Mark, I’m impressed that addresses everything in a serious way. Kingrex, Rex is going to begin with sinking new grounding rods in my place.


    Sent from my iPad using Tapatalk Pro
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  40. #40
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by UltraFast69 View Post
    Wow Mark, I’m impressed that addresses everything in a serious way. Kingrex, Rex is going to begin with sinking new grounding rods in my place.


    Sent from my iPad using Tapatalk Pro
    "Wow Mark, I’m impressed that addresses everything in a serious way."

    I assure you the way this has been progressed and all things I have tried along the way with input from some audiophiles who are master electricians and experts in power devices has been to tackle nthis in a serious way from the ground up (pun intended).

    In short, it all did and the most noticeable "in your face" or "in your ears" as it were, improvements were with the Shunyata TRITON v3 and TYPHON QR combination also moving my star-grounding connections from a separate device to the ground plane connects on the TRITON v3. Outstanding improvements, now the system just sounds like live music all the time.

    A word on Environmental Potentials EP2050 & E-2000 regen devices and 2750s (end-point) and 2775 (main-gate) ground filters ,....EP specializes in pro, medical, commercial and industrial power conditioning, wafe-form regeneration, surge suppression, etc...right off the power line in; they are experts in their field and have solutions from residential to full-on industrial, datacenter and medical facility applications. At the main-panel and sub-panel they have been (in my installs) superior to anything They are as specialized and knowledgeable in their focus areas as Caelin and Shunyata are in theirs upstream at the outlet and all after that. EP and Shunyata are a combination I've not found the equal of for the 'whole house' problem.
    Legacy Audio Valor+Wavelet v2, Esoteric S-02 Amps HDPlex 300W, RevAudio Labs DC Umbilical, Esoteric Grandioso P1, P1PSU & dual D1 DACs, Cybershaft Prem Ltd OP21A 10 MHz Clock, Esoteric C-02X, Shunyata Everest 8000 & Altaira SG-NR hubs, Sigma SGC/CGC ground cables, VTX-Ag ground tails, AfterBurner8 duplexes, CSP Inc Q4B, S2B IEC plates, Shunyata Omega CLOCK-50 cables, Tubulus Concentus HDMI, Elrod Master Series Diamond SE & Masters Series Gold Power cords and Statement Gold XLRs, Diamond XLRs & Master Series Diamond XLRs, Shunyata OMEGA QR-s power cable, Anaconda Z-tron XLR, Elrod Statement Gold speaker cables, Adona Zero GX3, GX2, GX racks, Composite Audio CF-2010, Townshend Audio Podiums, HRS DPX Damping Plates, Stillpoints Ultra SS w/Ultra Bases, pArtScience 64-well, 2D QRD 3-inch SpaceArray Diffusors

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  41. #41
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    I don't so much like filters on my gear. What I have been considering is a filter on the line that feeds my refrigerator. When that is running I can hear it through my amps and speakers. I could possibly look at replacing the run cap in the reefer, but I've wondered why audio companies don't design devices to clean up pollutants in your house.
    Kingrex: Have someone look at your main circuit breaker panel; this sounds like your refrigerator (and possibly other noisy devices like heating/air conditioning), etc...may well be on the same side ("leg") of your circuit breaker box as the circuit(s) for your audio system. Furthermore, they may be 'before' the circuits for your audio system in the order of supply from main input outward. If this is the case, have someone shut down the circuit break on the home and re-shuffle the order of circuits such that all noisy devices are on the opposite leg and that your system circuits are as close to or at the 1st outputs from the box after the main input. The electrician may need to do some rewiring in the box and also some simple math to balance the load on both legs of your panel to keep things within specs.
    Legacy Audio Valor+Wavelet v2, Esoteric S-02 Amps HDPlex 300W, RevAudio Labs DC Umbilical, Esoteric Grandioso P1, P1PSU & dual D1 DACs, Cybershaft Prem Ltd OP21A 10 MHz Clock, Esoteric C-02X, Shunyata Everest 8000 & Altaira SG-NR hubs, Sigma SGC/CGC ground cables, VTX-Ag ground tails, AfterBurner8 duplexes, CSP Inc Q4B, S2B IEC plates, Shunyata Omega CLOCK-50 cables, Tubulus Concentus HDMI, Elrod Master Series Diamond SE & Masters Series Gold Power cords and Statement Gold XLRs, Diamond XLRs & Master Series Diamond XLRs, Shunyata OMEGA QR-s power cable, Anaconda Z-tron XLR, Elrod Statement Gold speaker cables, Adona Zero GX3, GX2, GX racks, Composite Audio CF-2010, Townshend Audio Podiums, HRS DPX Damping Plates, Stillpoints Ultra SS w/Ultra Bases, pArtScience 64-well, 2D QRD 3-inch SpaceArray Diffusors

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  42. #42
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    Re: Cleaning up dirty power...What's your flavor?

    SC, Could you hear the cad weld. I heard the weld is actually inserting a bunch of residual material between the wire and rod. I was going to nut mine with a liberal coat of deox and shrink wrap a cover over the connection.

  43. #43
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    Re: Cleaning up dirty power...What's your flavor?

    SC, I'm a master electrician. I have tried both legs as well as confirming the refer is not on the audio leg. I have measured my house with a power logic 7550 and Fluke 199C. It's not that bad. I think I see RF noise. Even with scopes they just tell you you have some noise or you see some sine wave distortion. From there it's hard to determine what is making the noise or at what freq its at. It's not like they say your dimmer is doing it, or a computer SMPS or the University of Washintons VFD drives in the parking garage 1 mile away. That's the hard part of dirty power.
    I was real close to putting a 7kva equitech transformer in my basement. I never did as the 2.4 Kva balanced transformer I had was making the front end gear sound odd and the amps had a touch of veil. FWIW, I did have that transformer powering a CJ amp and it did its job with minimal down side. Took serious listening to hear it, but it shut down very loud transformer hum so it stayed. It does not work with either of my current amps. My Isoteck Syncro worked great on my Rega Osiris. That was its sweet spot.

    I still have amp hum. Reading the Pure Power website tech page makes me think I have RF noise. 2 week from now when I put my new subpanel in, I will use steel pipe for feeds and shield the power cables. Hopefully that cuts the noise without compressing the sound. Sometime shielding does odd things. I will be taking pictures and provide a write up of the project and results. Oddly, if it does not do much, that will bode well for the ofc cord I have run from my panel directly into a power distribution strip I built. Sonically that design dropped the noise floor dramatically. That is in comparison to #10 thhn in steel or PVC pipe. My guess is 1, ofc wire is better. 2 cord may damp vibration. 3 the power strip I built is of 1/2" Corian and a CD acrylic. That may be damping vibration too.

  44. #44
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    SC, Could you hear the cad weld. I heard the weld is actually inserting a bunch of residual material between the wire and rod. I was going to nut mine with a liberal coat of deox and shrink wrap a cover over the connection.
    Kingrex, I was not able to hear the CADWELD's effect separately as I had the 2 large-diameter solid grounds rods put in and the CADWELD all applied on the same day along with the large gauge ground wire lead to the main house power input point. I wish I would have thought about doing it in stages but my electrician had a hell of a time putting those rods into SC red clay that deep and probably would have 'sputtered' more loudly than he already was if I asked him to come back! It was not an easy project due to the soil composition here. The person who advised the CADWELD and his son from RI were both dedicated audio-nuts and master electricians; they never mentioned any residual material between the wire road. There may be for all I know but the end result sounded great in the system and there were noticeably blacker backgrounds overall with only that change. Stage 2 was the installation of the sub-panel and change of main house-panel to 2 panels that both had copper busbars and at that time also installing the EP2050 and 2750 devices into the main house panel and sub-panel (the 2750s, the 2050 only went on the main panel). That was also a big jump and as I mentioned the video playback for HDTV, Bluray and UHD4K-upscaled DVD was noticeably better from that step.

    Your ideal to coat the ground rod and wire with deox and then shrink wrap sounds like it could provide the same net-effect of sealing the ground wire to the rod. I assume you would use regular clamps for this; as long as you are not dealing with temperature and moisture extremes the way we do here, it should work quite well.
    Legacy Audio Valor+Wavelet v2, Esoteric S-02 Amps HDPlex 300W, RevAudio Labs DC Umbilical, Esoteric Grandioso P1, P1PSU & dual D1 DACs, Cybershaft Prem Ltd OP21A 10 MHz Clock, Esoteric C-02X, Shunyata Everest 8000 & Altaira SG-NR hubs, Sigma SGC/CGC ground cables, VTX-Ag ground tails, AfterBurner8 duplexes, CSP Inc Q4B, S2B IEC plates, Shunyata Omega CLOCK-50 cables, Tubulus Concentus HDMI, Elrod Master Series Diamond SE & Masters Series Gold Power cords and Statement Gold XLRs, Diamond XLRs & Master Series Diamond XLRs, Shunyata OMEGA QR-s power cable, Anaconda Z-tron XLR, Elrod Statement Gold speaker cables, Adona Zero GX3, GX2, GX racks, Composite Audio CF-2010, Townshend Audio Podiums, HRS DPX Damping Plates, Stillpoints Ultra SS w/Ultra Bases, pArtScience 64-well, 2D QRD 3-inch SpaceArray Diffusors

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  45. #45
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    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    SC, I'm a master electrician. I have tried both legs as well as confirming the refer is not on the audio leg. I have measured my house with a power logic 7550 and Fluke 199C. It's not that bad. I think I see RF noise. Even with scopes they just tell you you have some noise or you see some sine wave distortion. From there it's hard to determine what is making the noise or at what freq its at. It's not like they say your dimmer is doing it, or a computer SMPS or the University of Washington's VFD drives in the parking garage 1 mile away. That's the hard part of dirty power.
    I was real close to putting a 7kva equitech transformer in my basement. I never did as the 2.4 Kva balanced transformer I had was making the front end gear sound odd and the amps had a touch of veil. FWIW, I did have that transformer powering a CJ amp and it did its job with minimal down side. Took serious listening to hear it, but it shut down very loud transformer hum so it stayed. It does not work with either of my current amps. My Isoteck Syncro worked great on my Rega Osiris. That was its sweet spot.

    I still have amp hum. Reading the Pure Power website tech page makes me think I have RF noise. 2 week from now when I put my new subpanel in, I will use steel pipe for feeds and shield the power cables. Hopefully that cuts the noise without compressing the sound. Sometime shielding does odd things. I will be taking pictures and provide a write up of the project and results. Oddly, if it does not do much, that will bode well for the ofc cord I have run from my panel directly into a power distribution strip I built. Sonically that design dropped the noise floor dramatically. That is in comparison to #10 thhn in steel or PVC pipe. My guess is 1, ofc wire is better. 2 cord may damp vibration. 3 the power strip I built is of 1/2" Corian and a CD acrylic. That may be damping vibration too.
    Kingrex,...I am definitely not a master electrician; all I've learned has been courtesy of some very knowledgeable people so I try to share what I've learned as it just seems to work very well for me in each install that I've done with their advice. The amp hum problem you have sounds like a tricky one to track down; have your ruled out transformer hum from some bits of DC on the line or a subtle ground potential difference on one outlet or the other? I had that once where I had a dedicated circuit run with MCLite (sp?) metal flex conduit with 2 J-boxes in the circuit (bad idea) to split out to multiple duplex outlets; seemed like a great idea and was recommended by the electrician I used 3 houses and many years ago but turned out to be an absolute 'bear' to track down subtle differences with component hum from one outlet and not the others all ultimately attributed to subtle ground potential differences in the outlets connected to one side of a J-box and not the other, i.e. the J-box itself was the issue and how it was applied plus the metal conduit. Nasty problems to say the least....

    Purepower website: Is this the one out of Canada? Are you using a Purepower 2000+ or 3000+ by any chance? I frankly abandoned PP's units after the non-plus generation (had a PP2000 that I really liked) as the times I trialed a 3000+ and a 2000+ unit in my system, I heard alot of noise and buzzing in my speakers. PP blamed my system but they would never explain why the same system with no PP unit at all or with my older PP 2000 non-plus unit did not exhibit the problem minutes before or minutes after simply removing the + unit they had sent.

    RF noise: If it is, the shielding approach should help you....are you using shielded interconnects and other things today? RCA or XLR? If you want to have a longer conversation, feel free to drop me a PM with a phone# or email and we can talk. I'm no expert but have fought many battles with noise, hum, etc...over the years, happy to help if I can.
    Legacy Audio Valor+Wavelet v2, Esoteric S-02 Amps HDPlex 300W, RevAudio Labs DC Umbilical, Esoteric Grandioso P1, P1PSU & dual D1 DACs, Cybershaft Prem Ltd OP21A 10 MHz Clock, Esoteric C-02X, Shunyata Everest 8000 & Altaira SG-NR hubs, Sigma SGC/CGC ground cables, VTX-Ag ground tails, AfterBurner8 duplexes, CSP Inc Q4B, S2B IEC plates, Shunyata Omega CLOCK-50 cables, Tubulus Concentus HDMI, Elrod Master Series Diamond SE & Masters Series Gold Power cords and Statement Gold XLRs, Diamond XLRs & Master Series Diamond XLRs, Shunyata OMEGA QR-s power cable, Anaconda Z-tron XLR, Elrod Statement Gold speaker cables, Adona Zero GX3, GX2, GX racks, Composite Audio CF-2010, Townshend Audio Podiums, HRS DPX Damping Plates, Stillpoints Ultra SS w/Ultra Bases, pArtScience 64-well, 2D QRD 3-inch SpaceArray Diffusors

    Travel/Rip: Apple MacBook Pro 16” 2023 M2 Max, 12-core CPU, 38-core GPU, 32 GB RAM, 1 TB SSD for Audirvana+ v3, iTunes, REW Audio Analyzer, dbPowerAmp, DVD Audio Extractor

  46. #46
    Senior Member
    Join Date
    Dec 2017
    Location
    Seattle Washington USA
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    Re: Cleaning up dirty power...What's your flavor?

    Thanks SC. I don't think you can ever rule out a ground loop. Those buggers are annoying. I have feed my rack many ways and gone through quite a few stereo and monobock amps. I can't get rid of the hum. Even with the inputs shorted I get humming. I am trying a subpanel to improve isolation and separate grounding. I'm hoping that helps. Then comes the new power feed.

    I am considering the EP ground device. I have an SPD. I think cleaning the ground is a good idea.

  47. #47
    Senior Member
    Join Date
    Jul 2015
    Location
    Europe
    Posts
    240

    Re: Cleaning up dirty power...What's your flavor?

    Still have a PS Audio PPP, but only using it for my TV and TV Tuner (only connected to my Hifi system by optical cable), incoming %THD is 0.8 to 1.8 depending time off day.

    For my Hifi system I am using an Ansuz Mainz 8 D2 distributor which has made my system (with Ansuz Power cords on a dedicated power line) very quiet, increased dynamics/resolution, larger soundstage and more refined.

    Also easier now to tell the difference when I change equipment or cables in the system.
    Moon 700i V2, YG Acoustics Hailey, Aurender N10, dCS Rossini, Oppo BDP103D (audiopraise board), Ansuz Mainz 8 D2

  48. #48
    Senior Member
    Join Date
    Nov 2017
    Location
    Greenville SC
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    701

    Re: Cleaning up dirty power...What's your flavor?

    Quote Originally Posted by Kingrex View Post
    Thanks SC. I don't think you can ever rule out a ground loop. Those buggers are annoying. I have feed my rack many ways and gone through quite a few stereo and monobock amps. I can't get rid of the hum. Even with the inputs shorted I get humming. I am trying a subpanel to improve isolation and separate grounding. I'm hoping that helps. Then comes the new power feed.

    I am considering the EP ground device. I have an SPD. I think cleaning the ground is a good idea.
    Best of luck,...hope you get to the root of the problem ASAP!
    Legacy Audio Valor+Wavelet v2, Esoteric S-02 Amps HDPlex 300W, RevAudio Labs DC Umbilical, Esoteric Grandioso P1, P1PSU & dual D1 DACs, Cybershaft Prem Ltd OP21A 10 MHz Clock, Esoteric C-02X, Shunyata Everest 8000 & Altaira SG-NR hubs, Sigma SGC/CGC ground cables, VTX-Ag ground tails, AfterBurner8 duplexes, CSP Inc Q4B, S2B IEC plates, Shunyata Omega CLOCK-50 cables, Tubulus Concentus HDMI, Elrod Master Series Diamond SE & Masters Series Gold Power cords and Statement Gold XLRs, Diamond XLRs & Master Series Diamond XLRs, Shunyata OMEGA QR-s power cable, Anaconda Z-tron XLR, Elrod Statement Gold speaker cables, Adona Zero GX3, GX2, GX racks, Composite Audio CF-2010, Townshend Audio Podiums, HRS DPX Damping Plates, Stillpoints Ultra SS w/Ultra Bases, pArtScience 64-well, 2D QRD 3-inch SpaceArray Diffusors

    Travel/Rip: Apple MacBook Pro 16” 2023 M2 Max, 12-core CPU, 38-core GPU, 32 GB RAM, 1 TB SSD for Audirvana+ v3, iTunes, REW Audio Analyzer, dbPowerAmp, DVD Audio Extractor

  49. #49

    Re: Cleaning up dirty power...What's your flavor?


  50. #50
    mauidan
    Guest

    Re: Cleaning up dirty power...What's your flavor?

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