i used to have a Hafler 500 amp and ran it for a few weeks (or a few months, cant remember), and then i changed the amp for a QSC GX5.
then i listened to the same music as beforehand, and i was never aware of any change in SQ or whatever.
if there are differences, i could never hear any.
the 2 amps were used with the M80's for the comparison.
i'm talking here of good dynamic range music played at Realistic Levels (as if i was in the best seat of the hall).
when no sound is coming out of the speakers, i can hear the fans a little (measured at 1-2 dB more than no fans), but even with the softest sound coming out of the speakers, the fan noise disappears. so, for me, it's not a problem.
if the noise had been too loud, i would have just changed the fan for a quieter one or maybe use something to absorb the fan noise.
the reasons i bought pro amps?
half the heat;
near half the power consumption;
half the size;
half the weight;
twice the power;
very solid build;
quality components;
a fraction of the price of an equivalent "audiophile" amp;
6 year warranty.
at first i was looking for good quality amps, and after a while thought "wow, they're very costly!", even compared to 1000$ that i had paid in the mid 80's for the Hafler, so i had the idea of looking at pro amps and i don't regret doing that.
Last edited by J. B.; 12/04/12 08:09 PM.
