Apart from the power and the bass, their sound is pretty similar to the M80s, actually. More so than what I remember from the M3. I have it running now with some organ music and the EP500 as the sub. And it connected through the headphone port of my 805 (it's ok, they're more than 4ohm!! )! The 500 blends perfectly with them and I did not touch any settings at all! Pretty cool!