I am purchasing the LFM-1 Plus and the LFM-2 I was thinking of investing a little more money and buying the SMS-1 to have the perfect complement for the two subwoofers.
How difficult is it to use?
I forced myself to use an SPL meter for fear of really screwing things up but all went well. Gonk and another gunslinger Palmer gave me some guidence and suggestions along with reading the manual a couple of times....What a difference!
I am still not content with the bass response in my Definitive 1500 but it is better then it was before I the SPL. The bass in my Definitive 2004's are fine. However I know that I can have a better bass response and sound that is why I am moving to the Outlaw LFM Subs.

rubbersoul