I told Ian I was working on a liquid cooled heat pipe mod for the PX1's similar to the M1 monoblocks which yes, are at 2000 watts per channel into 4 ohms with 240 volt/15 amp dedicated inputs.

However, after running the new upgrade for three days now at levels that have not melted the crossover coils, but have sagged the glass on my living room windows and still have not caused the PX1's to get warm to the touch, I am abandoning the heat pipe project.