Having never heard them in a serious listening setting I can't say
whether these particular QSC amps sound bad or good for this purpose.

I have heard them in 4-5 different settings. They are outstanding amps
and very clean.


I
can say that if they are convection cooled and designed to go in the
19" relay rack (in a reasonable number of rack units, i.e. height) the

semiconductor junction temperatures are higher than if they had the
large heatsink area in free air possible with high-end products and
will probably not last as long. Solid state amplifiers designed for
domestic use should have big heat sinks to keep the power devices
cool quietly.

An opinion you get to have. Having an amp cooled by a fan simply means
the amp has a fan to cool it, nothing more. It doesn';t afect the
sound quality one bit. The QSC amps that Arny has mentioned don't have
fans, Neither do the Crown K series amps which are sold to the pro
market as well.



It's likely they are significantly better than what you could get at
Wal-Mart, however, so that by Kroo's standards they are probably
excellent.


They are good amps by any ****ing standard you care to use that
involves sound. Thety drive tough loads, they are able to be moved
around a lot more than consumer amps and they have massive power
capabilites and can put out power levels that would melt most other
consumer amps.