Rockford Fosgate T400X4AD Power 400 Watt Class-ad 4-Channel Amplifier

The Power T400X4ad 400 Watt 4-channel ultra-compact, amplifier is built on Rockford Fosgate’s proprietary Class-AD technology, featuring Constant Power to produce the same output at both 4-Ohm and 2-Ohm impedances. Flexible vehicle integration enabled through low-level and high-level inputs with auto turn-on. Top mounted controls allow easy access to built-in crossover and C.L.E.A.N. input/output clip detection circuits. The 3-stage thermal lock extrusion with dual fan forced induction keeps everything cool while real-time thermal/protection schemes safeguard the amplifier. Rockford Fosgate proprietary Class AD technology 4/2 Ohm muti-impedance Constant Power Differential inputs with high level auto turn-on feature 8 AWG power/ground connector w/ upgraded RCA connectors Remote-Out feature when using high level inputs 2/4 channel input switch 4 Ohm bridged capable C.L.E.A.N. input/output clip detection and indicator LEDs Top mounted controls Dual fan cooled Real time thermal sensing Dual extruded heat sinks Discrete surface mount technology. Recommended Fuse (not included)60 A Operating Voltage9 - 16 VDC Input Sensitivity150 mV to 12 V Number of Channels4 Crossover ControlsHigh-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth Low-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth All-Pass: Yes Signal InputFront High/Low Level Input: 4-Pin harness Rear High/Low Level Input: 4-Pin harness Speaker Output ConnectorFront: 4-Pin Harness Rear: 4-Pin Harness Speaker Wire Gauge16 AWG Heat Sink TypeExtruded Aluminum CoolingDual Fan Cooled Visual IndicatorsPower: Blue LED Protect: Red LED Input Clip: Red LED3 Output Clip: Blue/Violet/Red LED1,2,3 LED Color Legend: 1BLUE: 75% Average Current Draw (13.8V Music)28 A Max. Current Draw (13.8V Sinewave)55 A Suggested Alternator75 A Rated Power (RMS Continuous Power)100 Watts x 4 @ 4-Ohm 100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged BridgeableYes Front Terminals: Left (+) Right (-) Rear Terminals: Left (+) Right (-) Tone ControlsTreble: 0 to +14 dB @ 12.5 kHz Bass: 0 to +18 dB @ 45 Hz Signal Output— Power Input ConnectorDetachable Compression Terminal Power Wire Gauge8 AWG Remote Controls— Circuit Topology ClassClass AD Frequency Response20Hz-20kHz +/-1dB Shipping Weight3.4 Lbs. (1.54 Kg.) Dynamic Power (PVC/PowerCube®)128 Watts x 4 @ 4-Ohm 152 Watts x 4 @ 2-Ohm 290 Watts x 2 @ 4-Ohm Bridged Total Harmonic Distortion (THD+Noise)4-Ohm: 90 dB Channel Separation>60 dB Common Mode Rejection>60 dB