Kinge,

I've tried and tried and I can't get any attack. At least not attack that is to my liking. I get a lot of what you call "resonance" and what I call "ringing". Maybe if one has a cushy, dampened room this ringing dies away rapidly. That's not the case in my room.

It's a vastly different story with the PB13 though.

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