Resurrecting this thread, I decided to reduce the room a little and follow Sepmeyer's B room proportions. Only 20.8 m2 now but should have better room modes distribution etc. The thing is that my room is going to be wider (5.00 m) than its length (4.16 m)...
Alternatively one can use fixed analog filters in order to avoid the ADC-DSP-DAC of the subwoofer limiting the performance.
Yes, that is the point. Marantz used a severely undersized power supply and choke the modules, and they specified the output power correctly then. Maybe it is not to cannibalize their more expensive PM10, also based on NC500?
Yes. And the problem is that the NC500 module draws up to 700W in 4 ohms each, that is 1.400W for the pair, and the Model 30 power supply is 600W only... That is why VintageFlanker mentioned the modules are underpowered.