Originally Posted by Just cruising
I haven’t read this article but I have read several books on amplifier design and my back ground is electronics. You ask the question do we know what to measure for? I don’t know, the electronic industry help put man on the moon, makes sure your HDTV works to a very high standard, your cell phone, satellite communications and on and on. Do you really think with amps being some of the first uses for electronics that the engineers don’t know what to test …what is important and so on? If all these amps are so different in sound then why is it in any ABX test on amps that have a flat response, low output impedance and operating within the power band no one can distinguish one amp from another? As long as whatever distortion exists is below the threshold of being audible does it matter?
Of course Rodd does say it all in his introduction to the article “This is largely hypothesis on my part”….” I don't claim to have all the answers, and it is quite conceivable that I don't have any (although I do hope this is not the case). This entire topic is subject to considerable interpretation, and I will try very hard to be completely objective….. Readers' input is encouraged, as I doubt that I will manage to get everything right first time”
My background isn't electronics, but it is electrical and computer engineering. As I posted in my response to Bob, I'm a fairly new graduate(compared to many guys here with 20+ years of experience) so my real world experience is still lacking so I won't pretend to know everything. All I know is that in the numerous projects I did while in school, one thing I learned for sure is that when you've think you checked, double checked, triple checked everything, all the measurements, etc., there's always still one thing that somehow get's excluded and the amplifier, uart, fpga program, autonomous robot, etc. ends up not doing what it's supposed to do.
Like I said, I was an advocate of all amps sound the same, UNTIL
I heard ones that didn't. I'm not talking about generate sine waves though. I'm talking about real world material. Even then, I'm not 100% certain the amps were even operating within their limits. I hope they were or else many stated specs are plain lies. I'm not certain of either side of the argument, but merely believe that there exists the possibility that amps could, indeed, sound different. As such, the most logical explanation would be the design of each amp, unless of course you want to believe cables sound different...but that's a whole other ball of wax with many people adamantly believing each side.