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  1. #1
    Senior Member
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    Dec 2017
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    Seattle Washington USA
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    948

    Super Quiet Noise Floor

    I was complaining on other forums of my noise issues at my house. For years I blamed my home. Come to find a lot of my issues were my amps. I bought new amps and that made a significant impact. I still had some hum. Not heard at the chair any more. Not unless it was super quiet and I sat and intently listened for it at its worst times. This is way better than it had been, but louder than I wanted.

    Ultrafast and I had just done some work at his house. He told me to run a second circuit dedicated to my amps only. I did as such and what do you know. 2 circuits in my system are better than one. Again my noise floor dropped quite a bit. Now that only hum I heard was when I was right up at a speaker. I could no longer hear anything at my chair. Take away here. Don't listen to anyone tell you how many circuits are best for audio. My belief is your system will tell you. We each have a very unique setup, and unique home environment. What works for one, may not work for another.


    Ultrafast also utilized a few Environmental Potential EP2050. They are a surge suppressor and also suppose to get rid of noise. You can find info on the web and read if interested. Anyhow, I have had it in for 3 days now. I have to put my ear to my speakers to hear any noise now. My system is the quietest it has ever been. It is such a relief to not have an incessant hum heard at my chair. I now get a little unnerved that try as I may to hear hum at my speaker I almost cant. The quality of the input tube actually has more impact on noise now than anything else in my setup.

    Rex
    First Sound Mark3SI preamp, Altec Lansing 1570B modded by Transition Audio Design and myself, Mojo Audio CAT Server running Win Server 2016 AO HQ and Roon, Mojo Audio Mystic 3 DAC, Linear Solution Ethernet Switch, Custom TT with Vertere Arm, Denon 103R Midas with sapphire cantilever line contact diamond, Allnic H1201 phono pre, Pure Audio Project Trio 10 with performance Solen air core chokes and Mundord Supreme oil caps, Power via 10 awg OFC cord from panel to custom distribution strip, Inakustik speaker and interconnect cables, Genesis Interconnect.

  2. #2
    Senior Member
    Join Date
    Sep 2017
    Location
    Seattle
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    1,828

    Re: Super Quiet Noise Floor

    KingRex - we are checking boxes, doing things right, itís working!

    Iím excited to hear these improvements!

    No doubt Rex has a solid electrical foundation, with proper grounding and now all electrical will benefit by adding Environmental Potentials EP 2050, waveform corrector and surge protector.

    This is so good, we are starting a Company!




    Sent from my iPhone using Tapatalk Pro
    Source Analog: Kuzma Stabi R with 4point 9 arm & Kuzma 40 Cartridge
    Source Digital: Aurender N10 | Brinkmann Nyquist MK II
    Amplification: Dan DíAgostino Momentum Pre Amp and Monos | Boulder Phono 508
    Speakers: Wilson Alexias
    Cabling: Nordost Valhalla 2/Odin: power, interconnects & speaker | Ansuz: C2 power & interconnect | Audioquest Diamond RJ45ís
    Power: Nordost QRT series | Furutech FP55SN cable from 20 amp breakers to Furutech GTX D NSF packages | Keces P3 & P8 | ADD POWR series | Environmental Potential EP2050
    Other: HRS M3X | Stillpoints Ultra 6, SS & Mini | Nordost Sort Cones TC & BC | AQ Vox SE switch | etherREGEN | Gigafoil v4 | Vicoustics | Audio Desk Systeme - Glšss








  3. #3
    Super Moderator
    Join Date
    Apr 2013
    Location
    NY
    Posts
    17,332

    Re: Super Quiet Noise Floor

    That’s awesome Rex.
    Wharfedale Linton w/ stands, Avantgarde Duo XD, Klipsch RB-75, Klipsch RP-160M.

    Luxman 590AX Mark II, Job INTegrated.

    Conrad Johnson GAT2, Wyred 4 Sound STP-SE Stage 2, Misho Myronov Wooden pre.

    Misho Myronov Wooden amp, First Watt SIT-3 (x 2 - one as backup), First Watt F7, Job 250 Monos, Valvet E2se, NuForce STA200, AkitikA GT-102 amp, ASL Wave monos, Dennis Had 45 monos. Absolute Audio Labs PCF 25 amp (improved First Watt F7 super clone)

    RME Audio ADI-2 DAC FS, Lumin U1 mini, ModWright Ultimate Sony XA-5400ES, Audio Mirror Tubadour III NOS R2R Tube Dac w/ SE upgrades.

    Burmester 948, McIntosh MCLK12, Kimber Kable, Siltech, Cardas, Avanti Audio cables.

  4. #4
    Senior Member
    Join Date
    May 2013
    Location
    Silicon Valley
    Posts
    2,412

    Re: Super Quiet Noise Floor

    I have never had any noise issues with my system. Either with a single AC circuit, or the current three circuits. Glad you are making progress as noise drives me crazy. I moved my refrigerator into the garage to get rid of that noise.
    Bud

    Lumin X1
    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 preamp, 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 V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.

  5. #5
    Senior Member
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    Nov 2013
    Location
    Colorado
    Posts
    1,912

    Super Quiet Noise Floor

    Try a pair of nord nc500 mono amps or other class d types just to get a baseline for low noise. You may despise class D but at least it'll get you an idea of how quiet things can be.
    .

  6. #6

    Re: Super Quiet Noise Floor

    Well if you could hear hum or hiss at the listening chair you clearly had quite a few problems. Glad you're figuring it out.

  7. #7

    Re: Super Quiet Noise Floor

    Quote Originally Posted by UltraFast69 View Post
    KingRex - we are checking boxes, doing things right, it’s working!
    This is so good, we are starting a Company!
    Do you provide quotes to get other folks in the Seattle area a better electrical system for their homes too?

  8. #8
    Senior Member
    Join Date
    Dec 2017
    Location
    Seattle Washington USA
    Posts
    948

    Re: Super Quiet Noise Floor

    PM Ed about work. I hope Mike does not get upset here. Ed needs to figure out how to get the business info out without breaking forum rules.

    I did put a class D amp in my system. That is part of how I determined a piece of my noise issues was amplifier related. After I got more quiet amps, adding the second circuit definatly cut more noise. The EP2050 has keep remaining noise very low since installing it.

    Watch for a new post by Ultrafast. He did some more ground work and is very happy.

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Super Quiet Noise Floor

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