Separate gain control for preamp and subwoofer - 3000 Watts Peak Power - 800 Watts @ 2 ohms - 550 Watts @ 4 Ohms - 300 watts @ 8 ohms.Inputs: RCA (2 Audio Sources) - Outputs: Banana Binding Post (to Speakers) - 1 RCA dedicated for Preamp output.2 Mono RCA dedicated for Subwoofer Output - 1 RCA dedicated for Preamp Output - Digital Flourescent Output Display Meter - iPod/MP3 Input with Cable.USB Reader Function - Dimensions: 19" (W) x 3.5"(H) x 13"(D) - Weight: 14.7 Lbs.110/220V Switchable - AM/FM Quartz Synthesized Tuner The Pyle Pro P3201ATU is the perfect solution if you are looking for a High-Fidelity Preamplifier and a Power Amplifier all in one. This Receiver/Preamp features two sets of RCA inputs, RCA line out for recording, RCA preamp out, 2 Mono RCA's for subwoofer output, and iPod and MP3 player input via 3.5mm Cable. Plus, a USB port for plugging in your favorite digital music in MP3 format. Seperate gain control for preamp and subwoofer channels makes it easy to fine tune the levels of your audio. The P3201ATU Produces 3000 Watts Peak Power, 800 Watts @ 2 ohms, 550 Watts @ 4 Ohms, and 300 watts @ 8 ohms. Pyle has been in business for over 35 years, and their manufacturing experience and expertise is easy to see - and hear.