DS18 SXE Class D 4-Channel Full-Range Car Amplifier 4 x 275 RMS @4 Ohm 4000 Watts Color:Black All 7 Band knobs are

All 7 Band knobs are designed for the best grip with a precision stop point at 0 db gain

Warranty/Registration card

Everyone hides these in the back of the book

Adjustable Power Supply (APS) Power on Demand:The SC-120AMP is not only a charger

DS18 SXE Class D 4-Channel Full-Range Car Amplifier 4 x 275 RMS @4 Ohm 4000 Watts Color:Black All 7 Band knobs areTECHNICAL DATA DOWNLOAD THE USER MANUAL Power Total Watts (Peak) 4000W RMS Power @ 4 ohm 4 x 275W RMS Power @ 2 ohm 4 x 430W RMS Power @ 1 ohm N A RMS Power @ 4 ohm Bridge 2 x 750W Audio Frequency Response 10Hz 20KHz Signal to Noise Ratio 90dB Efficiency @ 4ohm 86% Damping Factor 140 Input Impedance 20k Channel Separation 45dB Total Harmonic Distortion (THD) 0. 05% Low Level Input Range 200mV 5V High Level Input No Selectable X Over HPF FULL LPF X