I have great news for you: that member is me

I'm running a 1602 with M80's (which are more like 5 ohm speakers - minimum 4 ohms).

Denon user manuals state that you CAN drive a 4 ohm load and it will only trip the circuit protection if you run them on Large for a long time at a loud volume. So I tried that with the M80's and they ran for three hours. Yeah, the unit was hot, but not THAT hot.

3801 will be more than capable.