kcb: absolutely excellent link.

Just to cast some additional light on my preference for stereo subs:

Consider an omnidirectional stereo pair of microphones placed in front of a stage at about 15' distance apart (not uncommon). Now imagine a bass drum at the left of the stage hitting a note. That low frequency information will reach the left microphone almost a full wavelength's time before it reaches the right microphone. That bass drum sets up a complex field of phase related peaks/valleys that mix acoustically and vary over time before it reaches your ear. Stereo subs will reproduce this sound-event and it will mix acoustically in your room just like it did in the original recording venue, which will increase the realism. If that same stereo low frequency information were to be summed electronically as it is with a single mono subwoofer, all this spatial information will be lost.

That is my main arugment for stereo subs.

At least in my case, I can tell the direction of low bass by sensing "pressure" from the direction of origin. It is not so much "hearing" the bass direction as much as
"feeling" the bass direction.

Keta- There is "somewhat" of a workaround to the double bass problem on the 950:

1) Set up the DVD-A/SACD player as all large speakers with no sub. The player (if it's doing BM correctly) will reroute the LFE info to the mains.

2) Just to be safe, do not connect the LFE channel from the player to the 950.

3) 80 Hz analog crossover off in the 950.

4) Turn off your sub.

So you would get full range mains, no LFE signal, but that info has been rerouted to the mains anyway. No double bass, all low freq info intact.

Not perfect, but it does work.