Rockford Fosgate TM400X4ad 4-Channel Amplifier

SKU TM400X4AD

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The Rockford Fosgate TM400X4ad 4-Channel Amplifier has a high efficiency Class-AD technology and a conformal coated PC board designed for motorsport and marine applications.

The Power TM400X4ad 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.

Main Features:

  • Rockford Fosgate proprietary Class AD technology
  • 8 AWG power/ground connector w/ upgraded RCA connectors
  • Differential inputs with high-level auto turn-on feature
  • Remote-Out feature when using high-level inputs
  • 4/2 Ohm multi-impedance Constant Power
  • 2/4 channel input switch
  • Top mounted controls
  • C.L.E.A.N. input/output clip detection and indicator LEDs
  • 4 Ohm bridged capable
  • Dual fan cooled
  • Real-time thermal sensing
  • Dual extruded heat sinks
  • Discrete surface mount technology
  • Marine grade two part epoxy coating on circuit boards
Tm400x4ad Image4

Specifications

Weight
1.54 kg
Dimensions
10.8 × 4.1 cm
availability

Online, Store

Model

TM400X4ad

frequency response

20Hz-20kHz +/-1dB

sensitivity

150 mV to 12 V

wire gauge

16 AWG (Speaker), 8 AWG (Power)

operating voltage

9 – 16 VDC

warranty

2 years

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 (-)

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

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

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 Input Connector

Detachable Compression Terminal

Speaker Output Connector

Front: 4-Pin Harness
Rear: 4-Pin Harness

Cooling

Dual Fan Cooled

Heatsink

Extruded Aluminum

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

Depth

8.3″ (21.1 cm)

The Rockford Fosgate TM400X4ad 4-Channel Amplifier has a high efficiency Class-AD technology and a conformal coated PC board designed for motorsport and marine applications.

The Power TM400X4ad 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.

Main Features:

  • Rockford Fosgate proprietary Class AD technology
  • 8 AWG power/ground connector w/ upgraded RCA connectors
  • Differential inputs with high-level auto turn-on feature
  • Remote-Out feature when using high-level inputs
  • 4/2 Ohm multi-impedance Constant Power
  • 2/4 channel input switch
  • Top mounted controls
  • C.L.E.A.N. input/output clip detection and indicator LEDs
  • 4 Ohm bridged capable
  • Dual fan cooled
  • Real-time thermal sensing
  • Dual extruded heat sinks
  • Discrete surface mount technology
  • Marine grade two part epoxy coating on circuit boards
Tm400x4ad Image4

Specifications

Weight
1.54 kg
Dimensions
10.8 × 4.1 cm
availability

Online, Store

Model

TM400X4ad

frequency response

20Hz-20kHz +/-1dB

sensitivity

150 mV to 12 V

wire gauge

16 AWG (Speaker), 8 AWG (Power)

operating voltage

9 – 16 VDC

warranty

2 years

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 (-)

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

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

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 Input Connector

Detachable Compression Terminal

Speaker Output Connector

Front: 4-Pin Harness
Rear: 4-Pin Harness

Cooling

Dual Fan Cooled

Heatsink

Extruded Aluminum

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

Depth

8.3″ (21.1 cm)