The new amplifiers is getting warmer and hot


Why the newer amplifiers / AV Processors and receivers is getting more warmer and hotter than the older versions ?
i have 2 1990s amps citation 7.1 and harman Kardon signature 1.5  runs cool compared with my current Parasound A21+
128x128lordrootman

Showing 2 responses by lordrootman

@erik_squires  no I’m not comparing class D 
why the newest amplifiers ,AVR , AV processors run warmer than old school ones ?
I know a lot of people is using mini fan on AVR like Marantz Onkyo Denon etc.... I don’t think it was like that in 70s-80s and 90s