sorry guys this must be a common question but

[micka]

that's all well and good, and scientifically measurable, but is it really audiable (all things being equal (ie level matched as seen in richard clark's amp challange)? i know rc's amp challange get's used as an example all too often, but why not? it's been going for years and afaik no one has gone close.
imho you're better off buying an amp with the features you need/want (power output, adjustable filters, brand association (read record of reliability, and resale value), cosmetics etc. your money could be better spent on installation than on inaudiable differences.
This issue has been discussed at length in just about every audio group and usually ends up as an "I can hear the difference, you don't know what i hear so how can you say i'm not hearing a difference" Vs. "There is a measurable difference; but it's beyond the threshold of hearing".

[Fhrx]

that's all well and good, and scientifically measurable, but is it really audiable (all things being equal (ie level matched as seen in richard clark's amp challange)? i know rc's amp challange get's used as an example all too often, but why not? it's been going for years and afaik no one has gone close.
imho you're better off buying an amp with the features you need/want (power output, adjustable filters, brand association (read record of reliability, and resale value), cosmetics etc. your money could be better spent on installation than on inaudiable differences.
This issue has been discussed at length in just about every audio group and usually ends up as an "I can hear the difference, you don't know what i hear so how can you say i'm not hearing a difference" Vs. "There is a measurable difference; but it's beyond the threshold of hearing".

That arguement too is debatable. I've heard many people here and in the US claim that RC is full of it and hasn't a clue about what he is talking about...

It's one of those never ending arguments. Many people claim the difference can be heard, many don't.

I tell you what though, when you turn your system up, you'll soon have a stunning demonstration of whether your amplifier is up to par to not.

[micka]

That arguement too is debatable. I've heard many people here and in the US claim that RC is full of it and hasn't a clue about what he is talking about...

I agree it is very debatable, hence the discussion at large in just about every audio scene. and the need to present both sides of the discussion unless you have difinative unchallangeable evidence. I'm not trying to change anyone's beliefs, they can believe whatever makes them happy; just trying to alert them to alternatives.

I tell you what though, when you turn your system up, you'll soon have a stunning demonstration of whether your amplifier is up to par to not.

"turn your system up?", that sounds suspiciously like a function of power:P

[urtwhistle]

"turn your system up?", that sounds suspiciously like a function of power:P[/QUOTE]
i think u will find he is refering to equaly powerful amps just different quality.
i also beleive there is a large diffference in quality of sound with amps

[micka]

i think u will find he is refering to equaly powerful amps just different quality.
i also beleive there is a large diffference in quality of sound with amps

so what you're saying is if 2 amps are level matched (not just have the same power rating on the box, but genuinely level matched so actual power output is the same) then one will be louder than the other? I'd be very interested in the physics of that