Originally Posted by whitecamaross
I WOULD TOTALLY DISAGREE WITH YOU. NOT ALL AMPS SOUND THE SAME. I HAVE OWNED PARASOUND, ROTEL AND NOW NAD.
THE M25 IS INSANE. ITS BASS MAKES MY PANTS VIBRATE AND ALMOST FEEL MUSIC IN MY GUTS. THE ROTEL WAS FORWARD AND BRIGHT AND PARASOUND WAS WARM. MAYBE ALL AMPS SOUND THE SAME TO YOU WHEN FIRST TURNED ON BUT IF YOU LISTEN FOR A FEW HOURS, A GOOD AMP WONT FATIGUE YOUR EARS. I THOUGHT I COULDNT DO BETTER THAN ROTEL FOR THE MONEY UNTIL I FOUND THE M25.
I know that you are attempting to be honest, and in your mind you probably do hear a difference between the amps, but in reality, if you were to try a level matched, blind and controlled comparison between any of those amps you listed, I would bet my soul to the devil that you could not tell which one was which.
The human brain is a powerful thing, and when it comes to amps, your bias will have a huge affect on what you think you hear. That is something that you can not control.
I used to be just like you, I had experienced lots of different amps over years, and I considered some to be bright, some neutral, some laid back, some warm, ect.... Not too long ago my local speaker shop set up a trail of different level matched amps to a/b compare. Neither me, nor the other 3 ppl in that room were able to differentiate between a very expensive sold state McIntish amp, versus a cheaper Parasound amp, or the other amps from the likes of Adcom, Outlaw, and Marantz. I highly suggest that you try this before saying that you think all amps sound different!