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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.
| 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 LED 3 Output Clip: Blue/Violet/Red LED 1,2,3 LED Color Legend: 1 BLUE: VIOLET: 1% THD 3 RED: 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 |
| 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.) |
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.
| WiFi Connected | No |
