Hmmm. OK. You have told me before that the FTC rules do not apply to car audio. Can I assume this is also true for Pro audio?
Here are some specs from a Peavey Class D amp I am looking at:
Rated Power (2 x 2 ohms) - 800 watts per channel @ 1 kHz at <0.1% T.H.D. both channels driven.
Rated Power (2 x 4 ohms) - 530 watts per channel @ 1 kHz at <0.1% T.H.D. both channels driven.
Current Draw @ 1/8 power - 550 watts @ 2 ohms, 390 watts @ 4 ohms, 250 watts @ 8 ohms
Current Draw @ 1/3 power -1,160 watts @ 2 ohms, 810 watts @ 4 ohms, 460 watts @ 8 ohms
Lets start with another question. Does the current draw @ 1/3 power of 1,160 watts translate to 560 watts x 2?
From what the pro amp guys, including the Peavey engineer, have written, their amps will deliver the 1/3 power draw all day long, but the full power (rated power) only for short periods of time (up to 45 seconds).
Another curious statement on the spec sheet is:
2 ohm power is time limited by circuit breaker.
I don't quite know how to interpret it or the other specs until I understand what rules apply.
