ROCKFORD FOSGATE T400X4AD

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.

FEATURES AT A GLANCE

• Rockford Fosgate proprietary Class AD technology
• Remote-Out feature when using high level inputs
• 4/2 Ohm muti-impedance Constant Power
• 8 AWG power/ground connector w/ upgraded RCA connectors
• Differential inputs with high level auto turn-on feature
• 2/4 channel input switch
• Top mounted controls
• 4 Ohm bridged capable
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Dual fan cooled
• Dual extruded heat sinks
• Real time thermal sensing
• Discrete surface mount technology

SPECIFICATIONS:

• 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 - 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 LED^1,2,3
• LED Color Legend:
• ¹BLUE: <0.5% THD
• ²VIOLET: 1% THD
• ³RED: 10%+ THD
• Power Wire Gauge: 8 AWG
• Power Input Connector
• Detachable Compression Terminal
• Replacement 1040-57997
• 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