I am thinking of getting the Outlaw 950 pre-amp, but right now all I have is a 2 channel Adcom GFA 545 amp to couple it with. Will this suffice until I am able to get together the bucks to spring for the Outlaw amp?

My speakers aren't big power eaters. I have an NHT SW-10 powered subwoofer, an NHT SC2 Center Channel Speaker, the rear channel speakers are 8" CRS SpeakerCraft ceiling mounts and the front channel speakers are Sound Dynamics RTS-3's. I have the same SpeakerCraft speakers in the kitchen, bedroom and on the porch, all with separate volume controls running through a Niles switcher.

Will this amp be able to provide me with enough power to get some decent sound out of my system while I save up for a 5 channel amp? I'm currently using a Nakamichi AV7 Surround Receiver (80w x 5). Will there be a noticable drop off in performance?