I hear with my ears, not with my oscilloscope

K&K Audio / Lundahl Transformers

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In Reply to: thanks guys. It wasn't me... posted by Joelt on April 26, 2004 at 06:36:40:

First of all, sorry for the brash title; it wasn't meant to be offensive, but to underline a point. In my opinion if you haven't listened to the result, you haven't done the crucial test. I can build an amplifier that has great square wave transmission performance that sounds bad and one that has terrible square wave performance that sounds really good. Now I have a dilemma: do I believe my ears or do I just dismiss the good sounding amplifier as fatally flawed because it has bad square wave performance?
I have come to the point of view that because music reproduction is about enjoyment, I choose my ears over my oscilloscope. If there are response peaks outside of the audio band, it is not offensive to me so long as I enjoy what I am hearing. Many audiophiles decry the lack of "objectivity" that this attitude conveys, but enjoyment is not about "objectivity". Where can one find the "absolute sound"? If this seems to you like sloppy engineering disguised as listening enjoyment, then so be it. Many users have been very happy with the technical and sonic perfomance that they have observed with the LL1676. Perhaps you aren't happy with the square wave performance, but listen, too, and see if this makes you think twice.
Second, some might not consider the 5-10% high frequency overshoot (far removed from the audio band) shown in one of Gary's oscillograms "quite a lot of ringing". If you desire only transformers with "perfect" square wave performance, then you will have to choose the transformers, driving conditions and loading conditions very carefully, indeed. Good luck in your quest!

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Follow Ups Full Thread

Topic - Help! LL1676 - what did I do wrong??? - Joelt 10:11:27 04/25/04 (7)

Re: Help! LL1676 - what did I do wrong??? - Gary P 06:43:05 04/26/04 (0)

thanks guys. It wasn't me... - Joelt 06:36:40 04/26/04 (2)

I hear with my ears, not with my oscilloscope - KevinC 08:03:12 04/26/04 (1)

Amen! (nt) - AnandR 19:49:50 04/26/04 (0)

Re: Help! LL1676 - what did I do wrong??? - arend-jan 03:30:14 04/26/04 (0)

Re: Help! LL1676 - what did I do wrong??? - arend-jan 00:52:20 04/26/04 (0)

Re: Help! LL1676 - what did I do wrong??? - KevinC 18:46:45 04/25/04 (0)

Follow Ups

I hear with my ears, not with my oscilloscope - KevinC 08:03:12 04/26/04 (1)

Amen! (nt) - AnandR 19:49:50 04/26/04 (0)

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