Mark Seaton
WBF Technical Expert (Speaker & Acoustics)
In saying that you would be incorrect. No amount of DSP can remove a standing wave! And its standing waves that cause problems with bass, especially below 80Hz or so. Standing waves can cause cancellation at certain frequencies so a loss of certain bass notes (along with others being emphasized). You can put all the power you want to into that cancellation and it will still cancel... In a nutshell, it doesn't work. DSP will work for removing peaks (since they are the result of superposition) but you can't do with nulls.
Obviously Kal clarified his point already, and I would add that anyone who doesn't understand that DSP can't directly fix room acoustics isn't going to be assembling a truly state of the art system on their own.
It's interesting that you mention the Double Bass Array (pitch-catch approach). Most executions of this utilize a digital delay on the rear set of bass sources. While possible, the amount of delay commonly required isn't simple to find in analog components.