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Rockford Fosgate Power 400 Watt Class-ad 4-Channel Amplifier The Power T400X4ad is an ultra-compact, high efficiency 400 Watt 4-channel amplifier. Features multi-impedance Constant Power, input/output clip detection, top mounted controls and dual fan forced induction cooling. Perfect for hybrid, electric, small cars, trucks, motorcycles, and side-by-side UTVs. 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 2-Year Warranty General Specifications CEA-2006 Compliant CEA-2006 Power Rating100W x 4 @ 4Ω≤1.0% THD+N Cta-2006 Compliant Number of Channels 4 Total Power (Sum of Rated Power) 400 Watts Rated Power (RMS Continuous Power) 100 Watts x 4 @ 4-Ohm 100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged Dynamic Power (PVC/PowerCube®) 128 Watts x 4 @ 4-Ohm 152 Watts x 4 @ 2-Ohm 290 Watts x 2 @ 4-Ohm Bridged Bridgeable Yes Front Terminals: Left (+) Right (-) Rear Terminals: Left (+) Right (-) Frequency Response 20Hz-20kHz +/-1dB Input Sensitivity 150 mV to 12 V Circuit Topology Class Class AD Efficiency (average) >75% Total Harmonic Distortion (THD+Noise) 4-Ohm: <1.0% 2-Ohm: <1.0% Signal Input Front High/Low Level Input: 4-Pin harness Rear High/Low Level Input: 4-Pin harness Signal Output — Tone Controls Treble: 0 to +14 dB @ 12.5 kHz Bass: 0 to +18 dB @ 45 Hz Crossover Controls High-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth Low-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth All-Pass: Yes Remote Controls — Visual Indicators Power: Blue LED Protect: Red LED Input Clip: Red LED3 Output Clip: Blue/Violet/Red LED1,2,3 LED Color Legend: 1BLUE: <0.5% THD 2VIOLET: 1% THD 3RED: 10%+ THD Power Wire Gauge 8 AWG Power Input Connector Detachable Compression Terminal Speaker Wire Gauge 16 AWG Speaker Output Connector Front: 4-Pin Harness Rear: 4-Pin Harness Cooling Dual Fan Cooled Heatsink Extruded Aluminum Operating Voltage 9 - 16 VDC Recommended Fuse (not included) 60 A Average Current Draw (13.8V Music) 28 A Max. Current Draw (13.8V Sinewave) 55 A Suggested Alternator 75 A Dimensional Diagram Dimensions (H x W x D) 1.6 x 4.3 x 8.3 (in.) 4.1 x 10.8 x 21.1 (cm) Shipping Weight 3.4 Lbs. (1.54 Kg.)
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