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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: But you use tubes!!!! posted by Pat D on May 2, 2008 at 16:44:40:
with some large Krell FPB's reports that his amps sound best after three hours. He runs a pair of 96 dB speakers, so power is not a factor. It simply could be that the large amp simply takes way more time to thermally settle down.
In the case of Counterpoint with their hybrid power amps with transistorized outputs, Mike Elliot said that early production units had tremendous reliability issues because they did not match transistor characteristics at operating temperatures. That statement says a lot right there.
Stu
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Follow Ups Full ThreadTopic - Why Do You Believe Audio Equipment "Sounds Better" After It's Warmed Up? - thetubeguy1954 08:38:31 05/02/08 (112)
- Why is it so important for audiophiles to "Believe in" things & so unimportant to experiment and learn the truth? - Richard BassNut Greene 08:57:51 05/14/08 (0)
- An example of class AB bipolar power amps - andy_c 09:55:53 05/04/08 (10)
- RE: Optimum bias point? - rick_m 16:57:18 05/04/08 (5)
- RE: Optimum bias point? - andy_c 17:33:34 05/04/08 (4)
- RE: Optimum bias point? - rick_m 20:13:38 05/04/08 (3)
- Yet another way of looking at it... - andy_c 21:17:32 05/04/08 (2)
- RE: Yet another way of looking at it... - rick_m 17:41:03 05/10/08 (1)
- RE: Yet another way of looking at it... - andy_c 18:28:09 05/10/08 (0)
- RE: An example of class AB bipolar power amps - Ugly 10:31:32 05/04/08 (3)
- RE: An example of class AB bipolar power amps - andy_c 10:59:50 05/04/08 (2)
- Ahh, makes sense. Thanks. n/t - Ugly 11:54:09 05/04/08 (1)
- Here's an IC designed for that purpose - andy_c 12:42:50 05/04/08 (0)
- I think tube amps sound best when running cooler. - jon_s 18:24:22 05/02/08 (3)
- A decebt music session can take a few hours. - cheap-Jack 08:13:19 05/05/08 (2)
- RE: A decebt music session can take a few hours. - jon_s 15:44:25 05/05/08 (0)
- Correction: it should read "a decent music session" (nt) - cheap-Jack 08:15:14 05/05/08 (0)
- System stabilizes more closely to designed point. ~t - mpathus 17:51:17 05/02/08 (1)
- Yes, however designers are also divided on this topic. -nt - soulfood 06:24:50 05/04/08 (0)
- RE: Why Do You Believe Audio Equipment "Sounds Better" After It's Warmed Up? - Ugly 12:57:58 05/02/08 (2)
- Nice answer. Kudos. - Enophile 15:21:31 05/02/08 (1)
- Thanks. - Ugly 16:49:22 05/03/08 (0)
- Seems to me - unclestu52 12:52:53 05/02/08 (0)
- "Warming up gear" is an overgeneralization. - Presto 12:38:47 05/02/08 (66)
- RE: "Warming up gear" is an overgeneralization. - thetubeguy1954 14:51:40 05/04/08 (2)
- RE: "Warming up gear" is an overgeneralization. - Presto 10:31:17 05/05/08 (1)
- No Problem Presto (nt) - thetubeguy1954 19:15:50 05/05/08 (0)
- That has NOT been my experience - E-Stat 15:32:59 05/02/08 (62)
- My question is, once warm, does the 845 sound more like a Marshall...or a Fender? - AJinFLA 18:19:46 05/04/08 (36)
- A real loony article. - rick_m 08:51:12 05/07/08 (0)
- It just amazes me that you use so many words to say something as simple as: - carcass93 10:40:31 05/05/08 (2)
- RE: It just amazes me that you use so many words to say something as simple as: - thetubeguy1954 06:22:14 05/08/08 (0)
- Its even more amazing that a dead person can type, much less be so ashamed - AJinFLA 19:03:34 05/05/08 (0)
- By all means ponder the question in the sanctity of your own lab - E-Stat 06:10:19 05/05/08 (31)
- Umm, this is my lab - AJinFLA 18:59:36 05/05/08 (30)
- Accuracy of the op-ed piece? - E-Stat 19:34:28 05/05/08 (29)
- Why not state specifically what you disagree with? - AJinFLA 03:59:01 05/06/08 (28)
- Regarding myself - E-Stat 06:29:47 05/06/08 (27)
- I have my own theories about "audiophilia"... - Presto 11:56:41 05/06/08 (26)
- Excellent Question Presto, Here's The Answer! - thetubeguy1954 08:47:37 05/07/08 (21)
- Um no. - Analog Scott 01:11:07 05/09/08 (5)
- RE: Um no. - thetubeguy1954 08:46:40 05/13/08 (1)
- RE: Um no. - Analog Scott 16:07:45 05/14/08 (0)
- Not even AJ will call you dellusional for claiming to hear imaging - AJinFLA 03:50:38 05/09/08 (2)
- RE: Not even AJ will call you dellusional for claiming to hear imaging - Analog Scott 07:12:31 05/09/08 (1)
- See This Verifies What I've Been Saying! - thetubeguy1954 09:00:47 05/13/08 (0)
- The answer is simple. - Presto 23:02:56 05/07/08 (14)
- "Why do objectivists attack? One word: semantics" - Analog Scott 01:14:25 05/09/08 (2)
- You're proving yourself to be a tenacious little troll, you are! (nt) - Presto 18:06:38 05/09/08 (1)
- A well reasoned supported retort to all my points - Analog Scott 01:53:12 05/10/08 (0)
- You've Lost The BIG Picture Though... This Is A Hobby! - thetubeguy1954 10:28:37 05/08/08 (10)
- RE: You've Lost The BIG Picture Though... This Is A Hobby! - Analog Scott 01:19:23 05/09/08 (8)
- RE: You've Lost The BIG Picture Though... This Is A Hobby! - Ugly 20:10:37 05/11/08 (7)
- "Someone trying to get some real work done might get annoyed by this " - Analog Scott 05:02:45 05/12/08 (6)
- RE: "Someone trying to get some real work done might get annoyed by this " - Ugly 14:10:22 05/12/08 (5)
- RE: "Someone trying to get some real work done might get annoyed by this " - Analog Scott 14:40:48 05/12/08 (4)
- RE: "Someone trying to get some real work done might get annoyed by this " - Ugly 15:25:55 05/12/08 (3)
- RE: "Someone trying to get some real work done might get annoyed by this " - Analog Scott 18:11:43 05/12/08 (2)
- RE: "Someone trying to get some real work done might get annoyed by this " - Ugly 19:32:35 05/12/08 (1)
- RE: "Someone trying to get some real work done might get annoyed by this " - Analog Scott 21:20:00 05/12/08 (0)
- Which really only means... - kerr 11:37:42 05/08/08 (0)
- Thanks for a thoughtful post - E-Stat 13:22:01 05/06/08 (3)
- You hit one nail square on the head... - Presto 17:45:07 05/06/08 (2)
- Well, that was a quote from SM - E-Stat 18:22:43 05/06/08 (1)
- Yeah, and designers don't always do things the same way. - Presto 17:01:22 05/07/08 (0)
- RE: You are both right. - rick_m 18:03:23 05/02/08 (2)
- Your Honesty Is Very Refreshing - thetubeguy1954 15:06:10 05/04/08 (0)
- Interesting... - mpathus 20:52:47 05/02/08 (0)
- Well, perhaps not minutes... - Presto 16:52:31 05/02/08 (1)
- Gotcha -nt - E-Stat 16:58:32 05/02/08 (0)
- But you use tubes!!!! - Pat D 16:44:40 05/02/08 (19)
- A friend - unclestu52 18:27:47 05/02/08 (1)
- RE: A friend - Pat D 18:11:46 05/05/08 (0)
- Let me repeat an earlier point - E-Stat 16:58:03 05/02/08 (14)
- RE: Let me repeat an earlier point - Pat D 06:55:43 05/03/08 (13)
- Audibility - rick_m 09:10:55 05/03/08 (0)
- What is ambiguous - E-Stat 07:09:16 05/03/08 (11)
- I'll take that as a "No," that Pass doesn't have audibility data. - Pat D 17:02:57 05/03/08 (10)
- Pomposity is really not necessary - E-Stat 19:13:43 05/03/08 (9)
- You imply I made a universal assertion and whine when I point out that I did not. - Pat D 18:23:10 05/05/08 (8)
- Actually - E-Stat 18:53:58 05/05/08 (7)
- RE: Actually - Pat D 15:51:40 05/06/08 (6)
- Easy - E-Stat 16:08:03 05/06/08 (5)
- RE: Easy - andy_c 19:38:14 05/08/08 (4)
- Please read this sentence again - E-Stat 05:47:13 05/09/08 (3)
- Actually it's two sentences and the reference isn't all that clear. (nt) - Pat D 19:45:43 05/09/08 (2)
- It was the ONE sentence that apparently eluded you - E-Stat 07:08:28 05/10/08 (1)
- RE: It was the ONE sentence that apparently eluded you - Pat D 06:40:19 05/17/08 (0)
- RE: But you use tubes!!!! - Analog Scott 16:47:08 05/02/08 (1)
- RE: But you use tubes!!!! - thetubeguy1954 08:09:49 05/04/08 (0)
- It sounds worse! That's why I REFUSE to warm up my equipment - Richard BassNut Greene 09:59:20 05/02/08 (4)
- "This effect probably differs among audiophiles" yes some can hear. nt - Norm 10:44:47 05/05/08 (3)
- You mean some believe in it and others don't? Believing in something doesn't make it correct! (NT) - Richard BassNut Greene 10:35:10 05/06/08 (2)
- But your dissatisfaction with other's proof also doesn't mean they are incorrect. nt - Norm 14:50:48 05/07/08 (1)
- I know what I hear and couldn't be wrong is proof of nothing and equivalent to - Richard BassNut Greene 09:00:43 05/14/08 (0)
- You're talking about "warm up" or 'breaking-in' or both? - cheap-Jack 09:00:16 05/02/08 (0)
- What's belief got to do with it? nt - clarkjohnsen 08:40:37 05/02/08 (16)
- I Know It's A Shame Clark But... - thetubeguy1954 09:58:11 05/02/08 (15)
- RE: I Know It's A Shame Clark But... - theaudiohobby 15:27:11 05/03/08 (2)
- Actually Hobby - thetubeguy1954 15:22:51 05/04/08 (1)
- RE: Actually Hobby - theaudiohobby 10:53:39 05/05/08 (0)
- Since you use a tube amp, Tom . . . - Pat D 16:53:52 05/02/08 (2)
- RE: Since you use a tube amp, Tom . . . - thetubeguy1954 08:19:26 05/04/08 (1)
- Note: I agreed with Tom that his tube amp may well sound different cold and warm! - Pat D 18:42:19 05/05/08 (0)
- I need proof...... no I demand proof ! - Richard BassNut Greene 12:55:07 05/02/08 (8)
- Stop already! - kerr 13:46:55 05/02/08 (7)
- Hmmmmm.... - Presto 17:06:20 05/05/08 (6)
- RE: Hmmmmm.... - kerr 04:18:21 05/06/08 (4)
- DBT? I thought... - Presto 12:23:46 05/06/08 (1)
- You should think twice about... - kerr 17:33:00 05/06/08 (0)
- My posts are serious, not funny - Richard BassNut Greene 10:31:14 05/06/08 (1)
- Are you on drugs? - kerr 17:23:16 05/06/08 (0)
- RE: Hmmmmm.... - weltersys 00:32:31 05/06/08 (0)
Follow Ups
- A friend - unclestu52 18:27:47 05/02/08 (1)
- RE: A friend - Pat D 18:11:46 05/05/08 (0)