Originally Posted by jlpowell84
I understand we want to avoid the snake oil mentality. But we can be arrogant to the point that every amplification power source on the planet will sound EXACTLY IDENTICAL EVERY TIME. I can tell you for 100% that there was a difference last night. The speakers sounded better with no doubt. In particular the S's from the male voice and the smaller higher frequency drums (sorry I don't know the correct terminology) were much clearer. The best way to describe it was with the Sherbourn as opposed to my 3313 you could make out the separate instruments as opposed to more blurred together. And the kicker is I wasn't even looking for that. I was checking for humm or buzz.
I doubt it man.
I'm interested you think so, but I should let you borrow my fast amp switching switchbox I made and see if the differences are what you think you hear?
Placebo is ripe in this type of arena.
We tested eight different amps...with about 10 people. At first we though we were hearing huge differences - but we realized Audyssey re-engaged in the pre-pro we were using after a power failure and was coloring our tests. Upon further testing the only amp people could reliably tell a difference between was the Onkyo home theater in box (HTIB) AVR, which seemed to have some sort of non defeatable EQ -- perhaps tailored the speakers it was normally intended to be boxed with. Even the Lepai T-amp sounded identical to each of us when compared to the Emotiva, Onkyo, inuke, crown, or Pioneer. We used the 212HT as the speaker audition initially. Later carp, scrappydue, and I repeated the test with Klipsch RF-63 speakers running full range. Still no dice, even running full range. If volumes are matched. They sound the same. We had absolutely instant switching capabiility because I bought some single throw two pole switches, made a box, and could hook up four amps at once to one set of speakers. We measured and tested very thoroughly. Making sure dB was accurate within .5dB by both using a SPL meter and a multimeter on the actual speaker wire. The 20 watt per channel t-amp sounded the same as the other amps at most any normal listening volume, even with full range use.
Audyssey run variances, or slight seating differences, or minor dB differences, or slight speaker delay issues, are going to have WAY
more impact to your listening experience than any amp brand/vendor difference --- unless the amp is purposely using some sort of built in EQ to color the sound.
The amps we compared:
Onkyo HTIB cheap AVR ($150ish)
Onkyo TX-NR1007 ($1200ish)
Pioneer Elite Receiver ($1200ish)
$20 Lepai T-amp ($20)
Crown XLS-202 ($300ish)
Emotiva XPA-2 ($800ish)
Emotiva XPA-3 ($700ish)
Inuke DSP-3000 ($400ish)
That said - I'd like to repeat the test with a pair of inefficient say 85dB speakers and see if the results were the same. I have to think with a less efficient speakers the power disparities would better reveal themselves at typical, or at least spirited listening levels, but that's a test for another day.Edited by Archaea - 10/11/13 at 6:46pm