Jim wrote:


Got three genesis series amps in a rack and after a listen say 10mins the
amps get pretty hot. Gains on amps are not on max but say 60-70% max so is
this normal?

Well we will need more information:

What impedance are you driving with each amp?
How loud are you listening to the system?
How much space is around each amplifier?
Is this "rack" fully enclosed?
Whay are you gains turned up so high? (Running the gains up above about 1/3 does many times make the amplifier run hotter than normal, and if your system is properly designed, you should not have to set up the gain structure of the system where it needs more gain at the amplifier input than that)