In Reply to: But my expectation was that the first amp was going to sound great... posted by Ivan303 on June 1, 2021 at 18:09:07:
"right off the bench and it did not, much to by disappointment.Expectation bias should have had me thinking my re-build with all new film caps 300B mono-block should sound GREAT.
But the DC-link caps, as most of the film caps in the re-built amps are, seem to be fine after a couple days of daily run in, say 12 hours per day.
But for the first day, I was quite disappointed."
I would have thought one could construct a purely psychological explanation that fits these facts quite well, even if we suppose, for the sake of argument, that in actuality the effects of the changed capacitors were minimal or unobservable. One could imagine a scenario like the following:One begins with great expectations of a dramatic improvement after having replaced the capacitors. The immediate reaction upon listening to it is therefore one of huge disappointment, since it doesn't sound any better than before. In one's disappointment one may even start thinking it sounds worse than before.
Then, after the initial shock passes, one starts to ponder on how it really *ought* to sound better, especially because the capacitors were quite expensive and everybody is always saying they should sound better. Gradually, one convinces oneself that it is starting to sound better, and finally one reaches the stage of believing it is a great improvement.
I'm not saying that it necessarily was like that. I'm just saying that an initial phase of disappointment when one's expectations were dashed seems like a perfectly understandable part of the "expectation bias" process.
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Follow Ups
- RE: But my expectation was that the first amp was going to sound great... - cpotl 06/2/2105:41:13 06/2/21 (65)
- RE: But my expectation was that the first amp was going to sound great... - Paul Joppa 09:12:26 06/2/21 (64)
- RE: But my expectation was that the first amp was going to sound great... - AmadeusMozart 15:52:13 06/2/21 (0)
- RE: But my expectation was that the first amp was going to sound great... - tube wrangler 09:58:47 06/2/21 (61)
- seems to me - PakProtector 12:46:52 06/8/21 (1)
- RE: seems to me - tube wrangler 13:22:11 06/8/21 (0)
- Well, that is the most ridiculous post you've made in ages! nt - kyle 14:23:05 06/2/21 (10)
- If it's not all of those DC-Link caps I replace that require breatk-in... - Ivan303 06:09:45 06/3/21 (5)
- RE: If it's not all of those DC-Link caps I replace that require breatk-in... - tube wrangler 14:29:47 06/3/21 (4)
- RE: If it's not all of those DC-Link caps I replace that require breatk-in... - AmadeusMozart 10:44:15 06/4/21 (1)
- RE: tube testers - deathtube 667 11:40:21 06/4/21 (0)
- RE: sockets - this makes sense - deathtube 667 03:03:04 06/4/21 (0)
- . - Tre' 15:54:33 06/3/21 (0)
- RE: Well, that is the most ridiculous post you've made in ages! nt - tube wrangler 04:23:48 06/3/21 (0)
- I love how he has all the numbers figured out. :-) nt - Tre' 20:10:43 06/2/21 (2)
- RE: by ears ... - deathtube 667 11:46:33 06/4/21 (1)
- RE: by ears ... - PakProtector 14:11:55 06/11/21 (0)
- RE: SE tube amps - when and what to measure ? - deathtube 667 11:22:19 06/2/21 (47)
- RE: SE tube amps - when and what to measure ? - tube wrangler 04:41:42 06/3/21 (46)
- RE: SE tube amps - when and what to measure ? - cpotl 14:24:38 06/4/21 (44)
- RE: SE tube amps - when and what to measure ? - tube wrangler 15:31:42 06/5/21 (42)
- Double Talk! - gusser 12:02:40 06/8/21 (41)
- RE: Double Talk! - PakProtector 04:10:49 06/9/21 (40)
- "I can always go and hunt up writings by DF, moo or DT and avoid doing everything they have said" +1 nt - Tre' 07:42:35 06/10/21 (39)
- RE: what to avoid ... - deathtube 667 08:11:44 06/10/21 (38)
- RE: what to avoid ... - PakProtector 12:53:04 06/11/21 (37)
- RE: wise up ... - deathtube 667 16:08:09 06/13/21 (36)
- It is obvious they are not following conventional EE practices - PakProtector 15:05:39 06/14/21 (3)
- RE: admission ... ? - deathtube 667 02:59:35 06/15/21 (2)
- RE: admission ... ? - PakProtector 15:06:14 06/24/21 (0)
- RE: admission ... ? - Tre' 06:31:14 06/15/21 (0)
- RE: wise up ... - Tre' 20:03:04 06/13/21 (31)
- RE: wise up ... - tube wrangler 23:53:45 06/13/21 (30)
- RE: wise up ... - Tre' 07:29:16 06/14/21 (29)
- RE: wise up ... - tube wrangler 17:50:04 06/14/21 (2)
- RE: wise up ... - Tre' 19:23:55 06/14/21 (1)
- RE: wise up ... - tube wrangler 21:03:49 06/14/21 (0)
- RE: wise up ... 15KHz - deathtube 667 12:09:37 06/14/21 (25)
- Got it. Yes, that is what Dennis says. - Tre' 12:16:21 06/14/21 (24)
- RE: Got it. Yes, that is what Dennis says. - Tre' 12:37:40 06/14/21 (23)
- RE: Got it. Yes, that is what Dennis says. - tube wrangler 18:01:08 06/14/21 (20)
- RE: Got it. Yes, that is what Dennis says. - Tre' 20:00:12 06/14/21 (19)
- RE: credentials ... who can challenge DF? - deathtube 667 08:30:37 06/15/21 (18)
- RE: credentials ... who can challenge DF? - Tre' 11:04:38 06/15/21 (17)
- RE: who can challenge DF .. levels to the game - deathtube 667 04:33:33 06/16/21 (16)
- this bullshit is not even funny anymore - elblanco 05:32:52 06/16/21 (15)
- RE: another ... - deathtube 667 05:53:17 06/16/21 (14)
- RE: another ... - tube wrangler 18:10:48 06/16/21 (13)
- RE: another ... you tried to help - deathtube 667 02:56:01 06/17/21 (12)
- RE: another ... you tried to help - PakProtector 15:56:46 06/18/21 (11)
- RE: LC filters for B+ ... - deathtube 667 16:53:40 06/18/21 (10)
- RE: LC filters for B+ ... - Tre' 18:04:28 06/19/21 (9)
- RE: LC filters for B+ ... it's about performance - deathtube 667 05:21:26 06/21/21 (1)
- Get your damn accusations straight - PakProtector 15:36:34 06/24/21 (0)
- RE: LC filters for B+ ... - tube wrangler 22:19:47 06/19/21 (6)
- no kidding... - PakProtector 15:50:21 06/24/21 (0)
- RE: LC filters for B+ ... - Tre' 07:23:28 06/20/21 (4)
- RE: LC filters for B+ ... - PakProtector 15:40:51 06/24/21 (0)
- RE: LC filters for B+ ... - tube wrangler 11:47:14 06/20/21 (2)
- RE: LC filters for B+ ... - Tre' 12:34:39 06/20/21 (1)
- the Math behind LC filter output voltage - PakProtector 15:14:00 06/25/21 (0)
- RE: Got it. Yes, that is what Dennis says. - deathtube 667 13:17:04 06/14/21 (1)
- RE: Got it. Yes, that is what Dennis says. - tube wrangler 18:07:31 06/14/21 (0)
- RE: SE tube amps - when and what to measure ? - AmadeusMozart 16:29:59 06/4/21 (0)
- RE: SE tube amps - when and what to measure ? - deathtube 667 10:29:58 06/3/21 (0)
- RE: But my expectation was that the first amp was going to sound great... - cpotl 09:44:32 06/2/21 (0)