Pyle 4 Channel Home Audio Power Amplifier - 3000 Watt Stereo Receiver w/ Speaker Selector, AM FM Radio, USB, Headphone, 2 Microphone Input for Karaoke, Surround Sound Home Theater System - PD3000A 3000-WATT POWER: The Pyle 4 Channel Pre-Amplifier is perfect for your karaoke and surround sound home entertainment system. It gives you 3000W peak power to be used for multi speakers w/ 2-8 ohms impedance allowing you to enjoy high quality audio 7 INPUTS: The personal portable digital amp box supports headphone, USB, iPod or MP3, tuner, AUX, built-in DVD player, w/ 2 microphone inputs w/ echo effect for karaoke, 1 RCA preamp output and 2 mono RCA dedicated for subwoofer SPEAKER SELECTOR: The professional integrated indoor house stereo receiver has A/B speaker selector enabling you to choose b/w speaker set. Use either A or B speakers or both. Note that when it is turned on initially it uses both speakers as default EQ CONTROLS: The sound amplifying device has crisp buttons for the audio sources and selectors, rotary knob for equalization and master volume adjustments. It also features blue LED illuminated buttons and knobs for high visibility DISPLAY METER: The compact and rack mount amplifier has a built-in digital fluorescent display meter which displays all the functions and input used. A remote control is also included in the package for distant audio adjustments