Their response to my last silly question………
Speaker impedance is complex at 8ohms or 4 ohms at 400Hz. Across the audio band 20Hz - 20K it will vary by quite a bit. Also, this is excluding the crossover network, which makes it a complex load.
The impedance has peaks and troughs. Certain speakers can drop to below 1 ohm deepening on the frequency.
So doing straight ohms law doesn’t quite apply as for resistive loads. Phase angle isn't accounted for in your ohm law.
Powerdrive will rarely activate with music signal, as the transient isn’t long enough to trigger it.
With sinewave testing the powerdrive will activate after a number of cycles.
So with music it will deliver the power as for normal 8 and 4 ohm load.
Also our power amp output stages are designed to deliver very high currents, typically they can deliver anything up to 100A peak into 0.1 ohms load. Again measure with 1mS single cycle.
Even in our budget amps like 320BEE the output current drive is 35Amps.
………..I think I’ll shut the hell up now.
