Class-T HiFi Power Audio Amplifier - 100W Dual Channel Surround Sound Stereo Receiver Box w/ USB, RCA, 12V Adapter - For Subwoofer Speaker, iPhone, Home Theater, PA System - Pyle PFA400U 100W POWER: The Pyle Dual Channel HiFi Audio Amplifier gives your entertainment or PA system a boost! Offers low distortion w/ acoustically accurate audio reproduction. Supports speakers w/ 2-8 ohm impedance allows you to enjoy high quality audio CUSTOMIZABLE SOUND: It features tone and direct switch which allows adjustment of how much bass and treble get through to be amplified. By switching to direct the filters are removed from circuit and the signal coming in is amplified w/o filtering 4 INPUTS: The professional class-T amp supports USB, SD/MMC. Connect android phone, IPhone, iPad, MP3 to the 3. 5mm jack input to enjoy surround acoustic amplified sound w/ the speaker. It also has RCA, microphone input LCD DIGITAL DISPLAY: The small personal integrated indoor stereo receiver features a built-in LCD control display which shows all the functions and input used. A 12V adapter and remote control are included in the package for distant audio adjustments EQ CONTROLS: This smart multi purpose 2 channel compact home theater digital amplifying box features crisp buttons and separate rotary knob controls for the treble, bass, and master volume adjustments