|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: Re: Common Mode ( long ) from Dennis posted by Ray Moth on December 3, 2006 at 19:00:01:
I'm not Dennis, or a channel, but here's my take.Normally a PP amp has one (and sometimes 2) stages that are SE, and so the constraints of a SE amp apply, and the PSU should be different for those stages. The only exception I can think of is the combined input/driver/phase splitter stage that is on the Quad 2 amp - itself a real technology driven design (that also sounds great).
The reason that the PP stage 'rejects' small music signals is down to the degrees of matching the output stage - no two tubes are exactly alike (no matter how hard we try to match them) - those mismatches will result in gain and phase differences between the two stages, that will result in some degree of attenuation of the signal.
The only way to avoid that is to have a single tube PP output (yes it can be done).
So I hope I've clarified that. These are real-world vs theoretical world differences, and sadly they are audible.
have fun
Owen
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- unCommon Modes - Owen 04:03:49 12/04/06 (1)
- Re: unCommon Modes - Ray Moth 16:36:13 12/08/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
