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 1 response by noromance

But doesn't Class D run cooler? More likely that the heavier, more expensive to build heat-sinking capacity is reduced in the newer amps along with more heat tolerant components which allow them to run hotter without damage.