I was asked about this three times in the last month by different about which is better and I tell them from my own experience it depends on the application.
My Fisher 50A and 55A amps are fantastic and make a lot of power for being triode connected,mainly because of the way they can go into AB2 without a hard clip.I'm thinking this could be due to the innerstage transformers because I also have a pair of Cary/AES SET amps with IT coupling and those are pretty dynamic as well.The IT trafos in those aren't the greatest but with better ones I think the amps would improve a lot as far as overall definition.
Now as far as detail and musical depth goes,R/C coupling holds an edge IMHO but IT coupling appear to have an edge in dynamics.Now,what I'm saying here is not cold hard fact,it is just from my experience from the amps that I have. I believe Mcintosh used an IT coupling transformer in one of their 1950s odd ball commercial amps.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
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Topic - Innerstage vs R/C coupling. - Michael Samra 10:47:01 02/25/17 (66)
- RE: Innerstage vs R/C coupling. - Gordon Rankin 14:01:22 02/28/17 (1)
- RE: Innerstage vs R/C coupling. - Tre' 18:12:44 02/28/17 (0)
- RE: Innerstage vs R/C coupling. - sser2 14:05:40 02/27/17 (0)
- Other Methods - Triode_Kingdom 08:54:17 02/27/17 (19)
- RE: Other Methods - dave slagle 04:44:08 02/28/17 (2)
- RE: Other Methods - Tre' 08:06:20 02/28/17 (1)
- RE: Other Methods - megasat16 09:13:26 02/28/17 (0)
- RE: Other Methods - Michael Samra 18:44:53 02/27/17 (0)
- RE: Other Methods IT - Chip647 13:52:54 02/27/17 (14)
- RE: Other Methods IT - Triode_Kingdom 13:06:47 03/02/17 (13)
- Very good point. - sser2 14:00:55 03/03/17 (3)
- RE: Very good point. - Triode_Kingdom 18:28:36 03/04/17 (2)
- Interesting circuit. - sser2 23:40:34 03/04/17 (1)
- RE: Interesting circuit. - Triode_Kingdom 08:41:16 03/05/17 (0)
- RE: Other Methods IT - Tre' 09:48:35 03/03/17 (8)
- RE: Other Methods IT - Triode_Kingdom 18:42:25 03/04/17 (7)
- RE: Other Methods IT - Tre' 09:01:45 03/05/17 (6)
- RE: Other Methods IT - cpotl 09:42:22 03/05/17 (5)
- RE: Other Methods IT - Tre' 10:33:09 03/05/17 (4)
- RE: Other Methods IT - Triode_Kingdom 15:26:11 03/05/17 (1)
- I think I got it. Thanks (nt) - Tre' 17:46:12 03/05/17 (0)
- RE: Other Methods IT - cpotl 11:15:04 03/05/17 (0)
- Miller - elblanco 11:05:44 03/05/17 (0)
- Or combine the two.... - PakProtector 02:46:27 02/26/17 (1)
- RE: Or combine the two.... - Michael Samra 03:55:24 02/26/17 (0)
- Ask Kara Chaffe at Dehavilland Electric Amplifier Company - Frihed89 00:57:48 02/26/17 (1)
- RE: Ask Kara Chaffe at Dehavilland Electric Amplifier Company - Michael Samra 01:56:53 02/26/17 (0)
- RE: Innerstage vs R/C coupling. - dave slagle 19:07:48 02/25/17 (0)
- RE: Innerstage vs R/C coupling. - vinnie2 12:53:45 02/25/17 (7)
- RE: Innerstage vs R/C coupling. - Tre' 15:31:23 02/26/17 (1)
- RE: Innerstage vs R/C coupling. - vinnie2 18:16:01 02/26/17 (0)
- RE: Innerstage vs R/C coupling. - PakProtector 02:51:12 02/26/17 (4)
- RE: Innerstage vs R/C coupling. - vinnie2 03:28:44 02/26/17 (3)
- LMAO....that explains it - PakProtector 18:03:14 03/06/17 (0)
- RE: Innerstage vs R/C coupling. - drlowmu 14:20:04 02/26/17 (1)
- RE: Innerstage vs R/C coupling. - vinnie2 18:14:28 02/26/17 (0)
- Three ways to couple...... - drlowmu 12:31:50 02/25/17 (17)
- I prefer a coupling cap to a cathode bypass cap - andy evans 07:53:29 02/27/17 (15)
- That is because people never DO a proper cathode bypass cap implementation - drlowmu 09:31:24 02/27/17 (14)
- We haven't AB'd the alternatives so frankly, who knows.... - andy evans 16:10:14 02/27/17 (13)
- RE: We haven't AB'd the alternatives so frankly, who knows.... - drlowmu 23:14:45 02/27/17 (12)
- That is your experience and opinion. - 91derlust 12:10:26 02/28/17 (11)
- RE: That is your experience and opinion. - drlowmu 16:33:27 02/28/17 (10)
- RE: That is your experience and opinion. - 91derlust 16:48:41 02/28/17 (9)
- let me tell you something... - PakProtector 09:09:26 03/01/17 (8)
- RE: let me tell you something... - TomWh 09:47:45 03/01/17 (7)
- you'll have to ask Him yourself...:) - PakProtector 05:48:15 03/03/17 (2)
- RE: you'll have to ask Him yourself...:) - vinnie2 14:27:44 03/04/17 (1)
- RE: you'll have to ask Him yourself...:) - PakProtector 17:29:35 03/04/17 (0)
- RE: let me tell you something... - megasat16 11:16:59 03/01/17 (0)
- RE: let me tell you something... - drlowmu 09:56:37 03/01/17 (2)
- RE: let me tell you something... - TomWh 12:20:59 03/01/17 (1)
- RE: let me tell you something... - drlowmu 12:46:28 03/01/17 (0)
- RE: Three ways to couple...... - mqracing 12:56:49 02/25/17 (0)
- RE: Innerstage vs R/C coupling. - mqracing 12:08:38 02/25/17 (0)
- To make a comparison shouldn't he be using a 1:1 IT? - Tre' 11:17:24 02/25/17 (3)
- RE: To make a comparison shouldn't he be using a 1:1 IT? - mqracing 12:19:27 02/25/17 (2)
- LC Coupling - Chip647 13:06:00 02/25/17 (1)
- RE: LC Coupling - mqracing 13:32:19 02/25/17 (0)
- Can you say inTerstage?... - Steve O 11:07:45 02/25/17 (6)
- RE: Can you say inTerstage?... - Michael Samra 18:24:36 02/25/17 (5)
- Innerstage vs Interstage... - Steve O 21:43:36 02/25/17 (4)
- RE: Innerstage vs Interstage... - Michael Samra 08:46:54 02/26/17 (3)
- Actually from the interweb...so it can't be fake (nt) - Steve O 12:20:11 02/26/17 (2)
- "Innerstage" sounds so cerebral! - FenderLover 17:47:06 02/26/17 (1)
- Cerebral? Not so much. More like a mondegreen (nt) - Steve O 20:31:09 02/26/17 (0)