Half-Din Design 1' Tall 10 Band Graphic Equalizer 12dB Boost/Cut Per Band Power On/Off Switch Dual Channel Multi-Colored Power Level Indicators 100 Watts x 2 Maximum Output 2/4 Speaker Hook-up Fader Control Common or Floating Ground Frequency Response:30-30kHz Output Impedance:4-8 Ohm Automatic Overload Sensing Circuit For 12V DC Negative Ground Systems