Killer,

I find your comments about the M80s compared to the M3s puzzling. By that, I don't mean to say that I don't believe you. I'd just like to really understand what it is about your environment that makes the M80s sound the way they do.

Have you confirmed that the straps bridge the bottom and top terminals? Have you confirmed that all drivers are indeed working?

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated