I'm low power.
Winey bi-amps his 20.1's, and I've bi- or tri-amped every Maggie I've owned (T-III, IC, IIIA, 3.6). My experience is that when you bi-amp with these speakers the power requirements take on another dimension. More IS better, but overall you can get outstanding dynamics with less power if you bi-amp. I have only 130W per side for Jazz, blues, orchestral. I would describe my listening levels as "moderate".
Winey bi-amps his 20.1's, and I've bi- or tri-amped every Maggie I've owned (T-III, IC, IIIA, 3.6). My experience is that when you bi-amp with these speakers the power requirements take on another dimension. More IS better, but overall you can get outstanding dynamics with less power if you bi-amp. I have only 130W per side for Jazz, blues, orchestral. I would describe my listening levels as "moderate".