Pyle 3000 Watt Premium Home Audio Power Amplifier - Portable 4 Channel Surround Sound Stereo Receiver w/ Speaker Selector & Remote - For Amplified TV, Subwoofer Speakers, Theater & PA System - PT3300 3000-WATT POWER: The Pyle 4 Channel Amplifier is perfect for your PA & home theater surround sound system. It gives you 3000 watts peak power which can be used for multi speakers w/ 2-8 ohms impedance allowing you to enjoy high quality music & movies 4 AUDIO INPUTS: This personal portable digital amp box supports 4 external sources - tape, tuner, AUX & DVD CD, w/ 2  microphone inputs for karaoke & event hosting, an exceptional bonus to a PA system! Also, it features 1 RCA for record line output SPEAKER SELECTOR: The professional integrated stereo receiver has A/B speaker selector enabling you to choose b/w speaker set. You can use either A or B speakers or use both. Note that when it is turned on initially it uses both speakers as default. EQ CONTROLS: It has crisp buttons for the audio sources & selectors, rotary knob for bass, treble, balance, master volumes w/ LED & mic output controls. Connect TV, AM FM radio, mp3, cell phone, iPad, computer desktop via 3.5mm RCA cable cord wire DISPLAY METER: The new & improved compact & rack mountable bookshelf amplifier has a built-in VFD display meter which measures the decibels & shows which input is used. A remote control is also included in the package for distant audio adjustments. WORRY-FREE SHOPPING: With the Pyle PT3300 updated version, we are confident of the quality of our product, therefore, we offer a 30-day money-back guarantee, no questions asked.