I have to do more critical listening but I'm not convinced a centre is needed for DPLII if listening from only the main position. In fact, it may be detrimental to over-all imaging and texture.

It was easy for me to turn the 150 off for music but with the 160, it's so leaps and bounds better, I have to be a lot more critical.

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