Hi.
In fact, talking about power without saying distortion makes no sense. In any case, the Rotel RB 870BX delivers 100W per channel into 8 ohms with a total distortion rate of less than 0.03% from 20 to 20k Hz.
At 4 ohms it delivers 200W per channel with THD below 1% at 1kHz.
The peak current...