Hi John,
I got the MBL111B with the 12" woofer and my reason to take it compare with the 111E with 10"x2 woofer are similar to yours - they go deeper and sound better to me.
I BI-amp them and they sound much better. Bass kicking faster and tighter when bi-amped so you might want to try. I even use an active bi-amped output to feed into the passive crossover circuit and I actually like that better than just passive bi-amp.
Nice setup you have!!
Cheers to MBL!!! Took me trying 5 different styles of speaker to finally settle in MBL!!
Jeff