I have two rebuilt baby British classic stereo power amps

Posted by Timbo in Oz (A) on April 10, 2014 at 04:25:29

In Reply to: Tube Power Amps ... power supply capacitance. posted by bjh on April 9, 2014 at 17:06:55:

Instead of the dinky little 32uf caps in series and parallel OEM they now have 3 by 470uf OR 4 by 470uf PSU caps, bypassed with film caps. At 340v HT that's a lot more joules than most 100wpc ss amps. Oh yes and SS rectifiers. Soft Recovery SR types and snubbed as well.

I have never heard better bass, either for slam or nuance and timbre.

The maximum output in RMS terms is till only 20WPC. Yet, they don't sound small. A pure class-A 45wpc SS STAX amp also rebuilt, isn't within a bull's roar of just one of them. Bi-amped it's an even bigger gap.

Highish volts squared is the reason valve amps don't need big capacitors.

Did you not know the formula for energy storage in _any_ PSU?

Warmest

Tim Bailey

Skeptical Measurer & Audio Scrounger

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Follow Ups Full Thread

Topic - Tube Power Amps ... power supply capacitance. - bjh 17:06:55 04/09/14 (17)

RE: Tube Power Amps ... power supply capacitance. - drlowmu 23:57:53 04/12/14 (0)

Thanks! nt - bjh 17:55:52 04/10/14 (8)

Interesting subject matter that should be taken to heart that is often misunderstood. - Michael Samra 22:32:38 04/10/14 (7)

RE: Interesting subject matter that should be taken to heart that is often misunderstood. - banpuku 06:14:41 04/11/14 (2)

Before or after the choke is an important point. - JJ Triode 11:12:02 04/11/14 (1)

RE: Before or after the choke is an important point. - Michael Samra 19:35:18 04/11/14 (0)

With all due respect... - Steve O 04:18:21 04/11/14 (3)

RE: With all due respect... - Bill Way 16:41:04 04/13/14 (1)

RE: With all due respect... - armin.linzenich 02:20:15 04/17/14 (0)

RE: With all due respect... - Michael Samra 19:31:11 04/11/14 (0)

Two brands I favor - E-Stat 10:35:33 04/10/14 (0)

I have two rebuilt baby British classic stereo power amps - Timbo in Oz 04:25:29 04/10/14 (0)

RE: Tube Power Amps ... power supply capacitance. - hahax@verizon.net 20:40:57 04/09/14 (0)

RE: Tube Power Amps ... power supply capacitance. - AJ 18:28:16 04/09/14 (0)

RE: Tube Power Amps ... power supply capacitance. - Tom Bavis 17:50:40 04/09/14 (1)

There's your answer - andy evans 07:18:58 04/10/14 (0)

RE: Tube Power Amps ... power supply capacitance. - FenderLover 17:27:31 04/09/14 (0)

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I have two rebuilt baby British classic stereo power amps - Timbo in Oz 04:25:29 04/10/14 (0)

I have two rebuilt baby British classic stereo power amps

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