How could 100 Watt class a has more head room than a 300 Watt amp Class AB


Put aside which brand or make.
I put two amps into a test, both highend amp came from the same manufacturer.
Both double down the power with half of the impedance load, and THD is about the same.
Regardless of the size and cost difference, from a pure science perspective.
300 watt in theory should provide more headroom and sound ease when it reaches 100db, but the reverse is the true, the class A 100 watt seems to provide more headroom.
I have tried to use another set of speakers which is much easier to drive and it reaches the same conclusion.
Can someone explain why?
Quality or quantity of watt, how do we determined?
samnetw

Showing 1 response by skanda

my "shoot from the hip" answer is that the one with the more robust power supply will have the most headroom and be capable of the most dynamic swings