Well we got the theater done. Turned out very well for my first one I think. Learned a lot for the next one. Still have a little touch up to do but it is operational. The box came together well and the other 2 subs will be on the way later this week. The only problem I have are they are very quiet. The signal light on the amp rarely lights up unless the receiver is cranked and even then the subs sound very weak. I have played around with the gain a little. Set it to 75db when audyssey asked. My towers are currently producing more bass than the subs right now and my Polk 505's work just fine when they were hooked up. I am thinking that the signal to the amp is weak. I have tried 2 different cables. I am using a RCA to XLR for the signal. I also tried a RCA with a XLR to RCA adapter with the same effect. Are these the correct cables? Or should I be using a RCA to TS? I would not think it would make a difference. But up till this project I had never heard of a XLR connector. If not what cable would you recommend? This is the adapter - http://www.parts-express.com/pe/showdetl.cfm?Partnumber=240-438 This is the RCA to XLR cable - http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10244&cs_id=1024404&p_id=4779&seq=1&format=2 I am also looking at getting the FBQ1000 you listed earlier with the subs this week. Once the new subs come in would you recommend I wire them in a series-parallel configuration to achieve 4 ohm?