The debate with myself still goes on about power supplies

Posted by xaudiomanx@aol.com (A) on August 26, 2008 at 17:29:32

Question I am proposing to all you out there. Is one huge power supply with plenty of headroom to spare as good, better than, not as good as two separate power supplies that are of substantial size in their own right for a preamp.

A good tech/friend that lives near me is on the fence with this issue. On one side he says that no matter how closely you match two spearate ones there is always some sort of mismatch(voltage, current output, etc.)no matter how slight. Audible or not? Maybe but most likely not. He said you will never have a matching problem with one huge supply. He feels that separate power supplies for each channel is more esoteric than functional as long as you build the single one with gobs of available current to spare. He said he has measured differences in matching mono power supplies but what he measured wasn't audible. But that doesn't mean it wasn't. It just means his ears didn't pick up any differences.

What does the crowd out there think?

Thanks!
Paul

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Topic - The debate with myself still goes on about power supplies - xaudiomanx@aol.com 17:29:32 08/26/08 (24)

RE: The debate with myself still goes on about power supplies - Stuben 13:49:26 08/29/08 (0)

RE: The debate with myself still goes on about power supplies - Mike C 11:53:36 08/29/08 (0)

Another approach... - Nickel Core 13:33:29 08/27/08 (7)

RE: Another approach... - shermanr@prw.net 08:56:14 08/28/08 (0)

RE: Another approach... - John Swenson 16:13:44 08/27/08 (2)

also - PakProtector 11:50:09 08/29/08 (0)

RE: Another approach... - Vatron 20:17:28 08/27/08 (0)

I agree - Russ57 14:12:02 08/27/08 (0)

Mmmm. - cheap-Jack 13:46:28 08/27/08 (1)

Nope. - Stephen R 11:14:30 08/29/08 (0)

RE: The debate with myself still goes on about power supplies - Caucasian Blackplate 05:43:34 08/27/08 (0)

Phasing/imaging. - twystd 20:48:01 08/26/08 (1)

Don't forget - unclestu52 10:44:23 08/27/08 (0)

RE: The debate with myself still goes on about power supplies - mikeyb 18:40:47 08/26/08 (0)

You could do something like this. - Tre' 17:45:50 08/26/08 (9)

RE: You could do something like this. - Mike C 11:43:38 08/29/08 (0)

nice approach - Jim Dowdy 07:02:15 08/27/08 (0)

RE: You could do something like this. - Neff 18:17:46 08/26/08 (6)

RE: You could do something like this. - Tre' 18:34:55 08/26/08 (5)

Preamp with 6 stages !!? - cheap-Jack 09:25:12 08/27/08 (4)

RE: Preamp with 6 stages !!? - Tre' 10:07:05 08/27/08 (3)

Yet me "argue" in a creative way. - cheap-Jack 11:57:30 08/27/08 (2)

RE: Yet me "argue" in a creative way. - Tre' 12:19:32 08/27/08 (1)

What problems? - cheap-Jack 13:10:39 08/27/08 (0)

The debate with myself still goes on about power supplies

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