Hi all, I'm building a new house and installing a home theater. I need some help with the "basics" of more complicated power equipment to drive my speakers. (more than just "buy a receiver with X watts / channel"). Thanks to this forum I've decided on my low end (Infinite baffle with 4 x 18" Fi audio IB318 in two manifolds entering just below my projection screen). I'm in the process of picking out some speakers in another thread (building floorstanding speakers into the wall, am I crazy). Assumptions: I currently have an Integra DTR 50.1 (130 watts per channel 7.2) Assume the following speakers need to be driven: Floor standing left/right loudspeakers with suitable amp power range 15-350 watts, maximum input power 230 watts, impedance (compatible with 8 ohms) Center channel: 15-300 watts suitable, 210 watts maximum input, Rear surrounds: 15-180 watts suitable, 130 watts maximum input Direct left/right surrounds: 15-160 watts suitable, 110 watts maximum input 4 x 18" subwoofers, single 4 ohm, RMS 550 W @ 20 Hz So here are the questions: I was going to use a Behringer inuke 3000DSP two channel. (1500W into 2 ohms per channel) My IB sub system needs 1100 watts per manifold (2 x 4 ohm subs in parallel = 2 ohms; 550 RMS x 2 = 1100 W). Run one channel to each. Is this the right choice? What is the deal with speaker "Maximum input" vs "Suitable Amplifier Power Range"? If my receiver is 130 watts per channel will it under power the floor standing L/R and over power / possibly ruin the left/right surrounds? Does the receiver adjust automatically or based on the channel outputs? What is a pre-amp, vs receiver, vs amp? Does it matter from which source my speakers receiver their wattage? will they sound different? Should I buy a dedicated amp for my front L/R? maybe the center channel as well? I'll hold off on the other questions until I get this figured out... Thanks, and bring it on.