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

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.

Overview

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

Technologies

C.L.E.A.N. Set-Up

C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with in/out clip LEDs to help match a source to amp and optimize output.

CE Compliant

This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC).

Class AD

This technology allows the amplifier to produce more power with less current draw from the vehicle's charging system.

Constant Power

Constant Power is a patented circuit topology that provides instantaneous delivery of output power over varying impedance loads.

CEA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

DSM

DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.

3-Stage Airflow

3-stage airflow method effectively exhausts heat and ensures your amplifier runs cooler for optimum performance.

Engineered In The USA

These Avatars are a personal signature from the Rockford Fosgate team member(s) who designed and engineered this fanatic product. This statement illustrates our commitment to being Designed and Engineered in the U.S.A.

Specifications
Speaker Output ConnectorFront: 4-Pin Harness
Rear: 4-Pin Harness
Speaker Wire Gauge16 AWG
Power Wire Gauge8 AWG
Power Input ConnectorDetachable Compression Terminal
Visual IndicatorsPower: 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
Remote Controls
Crossover ControlsHigh-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
Low-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
All-Pass: Yes
Tone ControlsTreble: 0 to +14 dB @ 12.5 kHz
Bass: 0 to +18 dB @ 45 Hz
Signal InputFront High/Low Level Input: 4-Pin harness
Rear High/Low Level Input: 4-Pin harness
Signal Output
Input Sensitivity150 mV to 12 V
Circuit Topology ClassClass AD
Efficiency (average)>75%
Total Harmonic Distortion (THD+Noise)4-Ohm: <1.0%
2-Ohm: <1.0%
Frequency Response20Hz-20kHz +/-1dB
BridgeableYes
Front Terminals: Left (+) Right (-)
Rear Terminals: Left (+) Right (-)
Dynamic Power (PVC/PowerCube®)128 Watts x 4 @ 4-Ohm
152 Watts x 4 @ 2-Ohm
290 Watts x 2 @ 4-Ohm Bridged
Rated Power (RMS Continuous Power)100 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohm Bridged
Total Power (Sum of Rated Power)400 Watts
Number of Channels4
CoolingDual Fan Cooled
Operating Voltage9 - 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 Alternator75 A
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 Weight3.4 Lbs. (1.54 Kg.)

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