Great review. No surprise to us M80 owners.
One thing I found fascinating was that Andrew offered technical reasons as to why one should leave the grills on.
I go through phases - sometimes I want the grills on, sometimes off. But it's always seemed that after a couple of weeks with the grills removed, I change my mind and put them back on. Then they'll stay on for 4-5 months until I decide to take them back off again. Rinse, lather, repeat. I usually come to the conclusion (again and again) that the SQ is just a _tiny_ bit better with the grills on than off, even though I visually prefer the M80's grill-less. That review seems to confirm that I'm not nuts (on this, anyway).
Cool stuff. Thanks for the link, Alan!
Edit - n/m, was going to make a comment about the impedance dip and recent conversations about this. But I see that the *top* line in the second graph is impedance, not the bottom. Doesn't look like it ever drops below 7ohm to me.
