subwoofer... passive or powered?

[pixelthis]

I dont meant to ruin your wonderfull and structured conversation but i have a set of four subwoofers. And they are both passive and active.One of them has the amplifier attached to the subwoofer frame and the other set has the amp detached from the subwoofer frame. Both work wonderful and both sets are using the "sealed acoustic suspension" enclousure. One set uses 2 Krell Reference 200 amplifiers and the other set uses a older JVC MD 3030 stereo block. I use a Velodyne SMS -1 to flatten the inroom response and because one set if subwoofers uses a high efficency Focal driver ît makes no difference if you use the smaller 55lbs JVC or the 253lbs Krell References.

The most important topic was not even discussed in this thread, room acoustics and the integraton with the meain speakers. It does not matter if the amplifier is attached to the subwoofer or not....

Cheers

Speaking of which, four subs would be difficult to get to play together( wave cancelling and all).
WHERE do you live, the ROMAN colluseam?