Two subwoofers??

I have certainly gleaned alot of good information from the follow-up threads to my original question. After reading all of them, I have come up with the following:

1. Everyone seems to agree (except for Search4tas) that I could certainly benefit from two subs. Let me clarify, that I have auditioned the M20's, and they did have a great bottom end for a mini-monitor.

2.The end result from the use of two subs is heavily dependant on room placement and room dimensions / layout.

Let me put another question out there then. My previous question and all of the resulting threads assumed that I would use two subs with 8" drivers (as I stated that speed was a priority). My question then is this: What about two subs; one with 8" drivers that would be x-over to kick in between 80Hz and 40Hz and a 15" sub with a x-over to take over lower than 40Hz. This would require an external x-over in my setup, but would negate most of the sub placement problems. Anyone tried this????

Thanks for all of the great info so far......

I don't see the need to use three subs as you suggest because the Velodyne frequency response is flat from 100 Hz down. Using two subs for the front channels and a third sub for the home theater channel would be sweet if you have the budget plus floor space.

I was not suggesting using three subs. Let me clarify. I have B&W CM2 speakers for the front and surrounds. These are great speakers if only a little light on the bottom end. To fill out the lower end, I now have only the one sub, and am exploring the idea of a second sub. My previous thread was to inquire if anyone had tried a two sub arrangement that used a large driver sub for lower freqs (40Hz and below) and a smaller driver sub for the 80Hz to 40Hz range.

Sorry about the misunderstanding. With the extended frequency range of your better quality subs it is not necessary to split the 80Hz to 20HZ range. So I still think that using an independent sub per channel would be your best option.