Two subwoofers or One?


I have a pair of Martin Logan Ascenti speakers with one Descent sub. What advantages besides having them operate in stereo would I get?

My room is 14' wide by 40' long would 2 subs. be more balanced, or should I just stick with the one sub?

Any help in this matter would help.
Thanks
Russ
russb
As far as subwoofers go: two are better than one. 12" woofer is better than 10" and in my case, 15" is heavenly. IMHO. warren :)
THANKS EVERYBODY FOR YOUR HELP.
WHAT IF I USE 2 SUBS, AND SET THE CROSSOVER TO 70 HZ. INSTEAD OF 40 HZ. WILL THIS WORK?

RUSS
On our website there are two resources that will help you. One is a paper on speaker placement. It includes subwoofer location. The second is a paper by Todd Welti and Floyd Toole on the use of multiple subwoofers.

Here's a link to our Resource Page.
This is how I set my subs. Jay (the James from James labs) gave me this advice. Not the first one, mind you, who recommended this way: Turn your crossover all the way down. Then turn it up slowly 'til the music has that "boxy" sound. You'll hear it when it is not right. Then turn the crossover down very slowly until the sound agrees with your ears. Crossover numbers mean nothing. The crossover is room dependent. Oodles on the 'gon about this. Trust your ears. warren