.....well, the thing I've learned best so far as a spambot on this board, is that it doesn't matter what you say, somebody is going to take a swing at you.....
.....the notion of adding a stereo amp to the mix has been discussed....here is a line of amps advised to me by Tom at SVS, to get me started with the subs I got from them if I needed to go light at first....the entry level of the line will strap to 830 watts to kick a sub, has 100 db's concerning signal-to-noise ratio, "less" than .01 of distortion, and costs under 300....with a damping factor and signal-to-noise ratio better than competitve Crown's....anyone considering a sub update could take some unpowered cylinder subs, and shoot 2 ohm watts with headroom at those 4 ohm subs fairly cheaply....hello oscillations.....
.....no, I don't work for either SVS, QSC, or this wholesale outlet.....
http://www.djdeals.com/qscRMX850.htm