Axiom Home Page Forums General Discussion Technical Questions How much power is needed to play M80s at reference

You might actually want to use the in room response of 95db for your calculations, it makes quite the difference. I suspect your Yamaha would be sufficient on it's own as I can hit 105 db peaks easily with my Denon 3808 in my ~4000cf room and I am sitting 12 ft away from my M80s with a single PB13 ultra.