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In Reply to: RE: Off topic question for Mike posted by airtime on July 09, 2016 at 18:03:24
You are the only one who has heard the system so really you should tell us. Anything in the signal path can and will affect the sound even interconnects. I wouldnt want anything like that between any components and definitly not a pot. Higher end preamp manufacturers avoid even using a high dollar pot as a volume control.
ET
Follow Ups:
It's on the ground leg and not the signal path. It varies the resistance to ground LIKE a volume pot.
Yes the pot is on the return but the resistor is in the path and I assume some sort of connectors are used as well. All have some sort of i pact.
ET
But I don't think it is a ground, it would be the negative if you were using balanced cable, so it would be a common on a single ended connection.
ICs with the exception of a few components that use specialized/proprietary plugs, are sending an AC signal, so it is in the signal path.
The only way to know if it hurting sound quality is to listen with and without it in the system.
It reminded me, in the '70s I had a Crown IC15O preamp that had two speaker posts on the back, with a wire like a piece of a paperclip. You could remove the wire and run a lamp cord or speaker wire to where you were sitting. You put a simple on/of switch in between the two wires giving you a remote mute switch. I never thought about it, or looked at the schematics. If it was somehow in the signal parh, then was negatively effecting sound quality. Never crossed my mind.
Chase used to sell an inline component that gave you remote control for the volume.
I have to agree withe Awe-d-o-file, anything added to the signal path will have some effect on the sound quality. Depending on the system it may not be audible.
This is a standard garden variety no frills RCA type plug connection. This is all vintage gear and typically not very picky about cabling.A simple question that is starting to feel like a deposition.
Edits: 07/10/16
Hi Airtime, everything I have read about passive preamps says you must use short cables. I use one and found some good 12 inch ones. I can't tell the difference with the standard 3 foot cable, gold ended.
Somewhere in his Audio Basics, Frank Van AlStine rips passive designs a new one and gives his reasons. I'll look it up but Saved by the Bell is coming on....Mark K.
I tried a few passive setups. It only works when you have the right source and amp combo. It is clearly a try it and see thing.Otherwise it is NOT a given winner.
As said a thousand times before - matching IS everything.
charles
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