Room correction - what device works best?

It is well documented that multiple subs can achieve better results than an equivalent single sub in appropriately sized rooms. Typically smoother frequency response from spreading room nodes and higher output/lower distortion from twice the woofer radiating surface.

"It is well documented that multiple subs can achieve better results than an equivalent single sub in appropriately sized rooms. Typically smoother frequency response from spreading room nodes and higher output/lower distortion from twice the woofer radiating surface."

Onhwy61- I think the key word is CAN. You can definitely get higher output from twice the radiating area (and twice the amplifier power). With careful placement you SHOULD be able to get smoother frequency response. However, it seems to me that it is at least theoretically possible to 1. place the subs so that they reinforce the same room nodes, or 2. create additional nodes. Not likely, but possible. For example, #1 could be achieved by placing both subs in the front corners of the room. If a node were located at the listening position, it would be re-inforced. OTOH, if the subs had a phase switch, setting one to 0 and the other 10 180 might cancel that node. #2 seems least likely but also at least theoretically possible. I'm not an acoustician, so if I am wrong, someone please correct me.

to 180

Al, I agree that the advantages the DEQX bring to the table might (probably) outweigh the down sampling issue, but in that sub $100 DVD players can decode (yes I realize that's all) the native higher sampling rates, it is still somewhat disconcerting that an item that can cost close to $5,000 can't do it all in the native higher sampling rates.
I still wish there were more amps (preferably mono) that could accept direct digital input from devices like the DEQX.

Re: mono subs, I can't help but wonder if a mono sub when being fed summed stereo input might actually find itself competing with channel signals and actually subtracting information in the process. IME, stereo subs have always sounded better than a mono sub when fed stereo signals. But I suppose their could be an exception to my experience that works differently?