In Reply to: Re: A straight answer: DBT's are strong evidence not all components sound different & most manufacturers don't like th posted by Tom Dawson on June 9, 2006 at 13:03:22:
High output impedance amps will react with speaker impedance to change the frequency response in a way that could be audible.Whether it is audible or not requires careful level matching at 1000Hz. and hiding the DUTs -- otherwise a listener would be comparing amps playing at different volumes which is not a meaningful difference.
Most people shopping for an amp would be comparing similar current designs where differences are less likely to be audible than the amps you listed.
Sorry if this insults you but hundreds of audiophiles have experimented and found "I know what I hear" was a gross exaggeration for them.
It could be for you too.
That's what objective tests help us find out.
Richard BassNut Greene
My Stereo is MUCH BETTER than Your Stereo
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Follow Ups
- Any amps with tubes will have more distortion and will distort the frequency response - Richard BassNut Greene 13:52:17 06/09/06 (15)
- You can refute Richard's universal statement with a single counterexample, - Pat D 10:19:59 06/10/06 (1)
- Posted in the wrong place. - Pat D 14:43:35 06/10/06 (0)
- Re: Any amps with tubes will have more distortion and will distort the frequency response - Soundmind 20:20:46 06/09/06 (3)
- Re: Any amps with tubes will have more distortion and will distort the frequency response - Tom Dawson 20:42:25 06/09/06 (2)
- Re: Any amps with tubes will have more distortion and will distort the frequency response - Soundmind 04:05:19 06/10/06 (1)
- Re: Any amps with tubes will have more distortion and will distort the frequency response - Tom Dawson 19:45:51 06/11/06 (0)
- " Any amps with tubes..." - sounds like blatant anti-thermionic bias to me.... - Tom Dawson 15:05:58 06/09/06 (8)
- I've seen a lot of reviews of tube amps with a high output impedance. - Pat D 18:48:50 06/09/06 (7)
- OTL = output transformerless (nt) - andy_c 19:28:25 06/09/06 (1)
- Thanks for the information. (nt) - Pat D 06:59:33 06/16/06 (0)
- Re: I've seen a lot of reviews of tube amps with a high output impedance. - Tom Dawson 19:23:08 06/09/06 (4)
- Re: I've seen a lot of reviews of tube amps with a high output impedance. - theaudiohobby 10:59:43 06/11/06 (2)
- Re: I've seen a lot of reviews of tube amps with a high output impedance. - Tom Dawson 19:47:30 06/12/06 (0)
- Explanation of falling distortion with reduced output - Soundmind 04:48:11 06/12/06 (0)
- You can refute Richard's universal statement with a single counterexample, - Pat D 14:42:24 06/10/06 (0)