Originally Posted by
dumdum
They are at two different impedences, the power supply is closer to its maximum output with a two ohm test vs a four ohm test, no other reason
why would anyone test at a random number in the middle of an amps power delivery, heat figure should it be done at?
using amps to have headroom is not even a reason to get a bigger amp, distortion drops as you get near the clip point, so you ideally want to be in the top 25% of the amps performance to get the best power vs distortion figures