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May 9, 2021, 06:37 PM #1
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- Dec 2013
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- Stillwater, NY
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Signal ground connection question
I am thinking of playing around with signal ground on my system next to see what happens. I have a Luxman c900 preamp and m900 monos and an esoteric k01xd. All have a signal grounding terminal in the bAck. The owners manual says the following below from both Luxman and esoteric. I was thinking of connecting all the units together with the preamp as the central unit. Is it a simple as connecting a grounding wire from each unit to the preamp or not? Please advise, thx!
From Luxman
Is a ground terminal for devices to be connected to this unit. This terminal is used to reduce noise when other devices are connected to it.Boulder 2160 and 2110, Esoteric K01XD, Magico S3s mk2s, 2 REL carbon special subs, Authentic Audio Images Assoluto cables, Stromtank 2500 mk2, HRS M3x isolation pads, Stillpoint ultra ss v2 footers, Dedicated sub panel in the room and dedicated sound room with ASC tube traps and Vicoustics treatments
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May 9, 2021, 07:50 PM #2
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May 9, 2021, 08:06 PM #3
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- Dec 2013
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- Stillwater, NY
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Re: Signal ground connection question
The terminal on all my Luxman gear and esoteric is labeled signal ground not chassis ground. Still no?
Boulder 2160 and 2110, Esoteric K01XD, Magico S3s mk2s, 2 REL carbon special subs, Authentic Audio Images Assoluto cables, Stromtank 2500 mk2, HRS M3x isolation pads, Stillpoint ultra ss v2 footers, Dedicated sub panel in the room and dedicated sound room with ASC tube traps and Vicoustics treatments
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May 9, 2021, 08:25 PM #4
Re: Signal ground connection question
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
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May 9, 2021, 09:35 PM #5
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- Dec 2013
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- Stillwater, NY
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- 66
Re: Signal ground connection question
Boulder 2160 and 2110, Esoteric K01XD, Magico S3s mk2s, 2 REL carbon special subs, Authentic Audio Images Assoluto cables, Stromtank 2500 mk2, HRS M3x isolation pads, Stillpoint ultra ss v2 footers, Dedicated sub panel in the room and dedicated sound room with ASC tube traps and Vicoustics treatments
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May 9, 2021, 10:45 PM #6
Re: Signal ground connection question
Ah, okay.
Per your photos, you can connect a wire from the ground shell of an unused input jack on your other components to the Signal ground connector on your Luxman. A simple way to do this is to buy some CCTV RCA plugs that have a screw terminal for + and - . Connect a wire to the - terminal only to connect the ground shell of that plug, plug it into an unused RCA jack on your other components, and you can connect the other end of that wire to your Luxman's signal ground post. It looks like the component in the middle photo is a DAC (?)...you could also connect a wire from that ground post to the signal ground of your preamp.
I would try this one component at a time and listen for improvements.
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May 10, 2021, 08:02 AM #7
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- Dec 2013
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- Stillwater, NY
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- 66
Re: Signal ground connection question
Puma Cat
Yes middle picture is of a dac, and thanks for the input!Boulder 2160 and 2110, Esoteric K01XD, Magico S3s mk2s, 2 REL carbon special subs, Authentic Audio Images Assoluto cables, Stromtank 2500 mk2, HRS M3x isolation pads, Stillpoint ultra ss v2 footers, Dedicated sub panel in the room and dedicated sound room with ASC tube traps and Vicoustics treatments
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May 10, 2021, 09:56 AM #8
Re: Signal ground connection question
So your going to make parallel ground paths? And what if some grounds are copper and some silver and they vary in length. Who knows, it may work. But all your interconnects have a signal ground tying the components togethet.
If it is a signal ground, my guess is it would be better used to a ground box looking to drain noise.
Let us know if it works or if you end up with ground loops.
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May 10, 2021, 12:21 PM #9
Re: Signal ground connection question
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
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May 10, 2021, 12:33 PM #10
Re: Signal ground connection question
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.
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May 10, 2021, 06:05 PM #11
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- Dec 2013
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- Stillwater, NY
- Posts
- 66
Re: Signal ground connection question
Boulder 2160 and 2110, Esoteric K01XD, Magico S3s mk2s, 2 REL carbon special subs, Authentic Audio Images Assoluto cables, Stromtank 2500 mk2, HRS M3x isolation pads, Stillpoint ultra ss v2 footers, Dedicated sub panel in the room and dedicated sound room with ASC tube traps and Vicoustics treatments
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May 10, 2021, 06:06 PM #12
- Join Date
- Dec 2013
- Location
- Stillwater, NY
- Posts
- 66
Re: Signal ground connection question
BlueFox
Thx i am a rookie, what should it read if it is chassis vs signal ground?Boulder 2160 and 2110, Esoteric K01XD, Magico S3s mk2s, 2 REL carbon special subs, Authentic Audio Images Assoluto cables, Stromtank 2500 mk2, HRS M3x isolation pads, Stillpoint ultra ss v2 footers, Dedicated sub panel in the room and dedicated sound room with ASC tube traps and Vicoustics treatments
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May 10, 2021, 08:08 PM #13
Re: Signal ground connection question
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.
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May 10, 2021, 08:38 PM #14
Re: Signal ground connection question
Wouldn't this depend on how the signal ground is grounded, or not. If the signal ground is tied to the circuit power ground, which is tied to the chassis, then it would be 0 ohms unless a resistor is in the path. Then you would read the resistor value.
If it's floating it would be an open circuit.
I would not mess with trying to bond case grounds. It seldom seems to do anything. And the mess of wires can pick up noise from power wires or act as an antenna and pick up RF, then inject it into your ground. But more your making multiple ground paths. Your power cords should be your single point ground reference.
My phone does not show pictures. Now that I am on a computer, I see them and it does look like it could be a ground tied to the signal. If that is the case, that is a place I would land a ground to an Entrique type box. I would not try bonding them together. That would be a path right into the amplification gain stage and noise could really get amplified.
Of course, the itch is hard to ignore till you scratch it.
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May 11, 2021, 02:17 PM #15
- Join Date
- May 2017
- Location
- Cleveland, Ohio, USA
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- 530
Re: Signal ground connection question
Most well designed components, attach the audio circuit common (aka signal ground) to the chassis at a single point near the input connectors.
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AudioShark forum is a leading forum site for High End Audio Discussion, Stereo System Discussion, Home Theater System Discussion, Best Home Stereo System Discussion, Home Theater Installation Discussion etc.
The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
At AudioShark, we also have incorporated an exciting Marketplace where members can peruse terrific buys on used gear, as well as meet dealers and discuss the purchase of new gear.
We are as crazy about this hobby as you are! So come on in and join us! Audioshark.org the Friendliest Audio Forum!
Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
Audioshark is a community of like minded individuals. Audioshark welcomes participation from all manufacturers and owners of all brands and products. It is our belief that online forums provide a community of like minded audiophiles and music lovers to encourage the growth of this wonderful hobby.
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I'm suffering issues with getting 1 boulder amp to talk to another boulder amp. I will agreed sound is pretty good.
Boulder 866 app