Whether you're looking to drive high frequency component speakers or low frequency subwoofers, the PM400X2 has the power and flexibility you need to put some serious PUNCH in your vehicle. The power available from such a small amp means it's a great match for a 2-ohm DVC subwoofer or pair of 8-ohm SVC subwoofers.

Element Ready - Amps

These amplifiers are protected against Dust, UV, Corrosion, and feature Stainless hardware.

Our Moto-marine amplifiers have not only the capabilities you expect a Rockford Fosgate amp to have, but we have designed them to stand up to the environmental conditions you are likely to subject them to. With corrosion resistant stainless steel hardware and two-part epoxy coated circuit boards, these units are designed with you in mind. Whether on the lake, on the road or in the back woods these amplifiers are ready for an adventure.

Dust - We make sure that displays and motor structures are sealed up tight so they look as clear as possible and perform day in and day out no matter how many times you hit the trails.
UV Inhibitor Materials - Centrex and ASA plastic materials are used for their UV radiation resistance and components are tested in accordance with ASTM D4329 testing and certification procedures.
Corrosion Protection (Electronics) – Two part epoxy coated PCB boards prevent corrosion of critical components due to exposure in moisture rich environments.
Stainless Hardware – Stainless hardware is used due to its natural resistance to corrosion and rusting. This ensures that electrical connections will not degrade over time due to exposure to the elements.

CEA-2006 Compliant:     [CEA-2006 Guidelines]
CEA-2006 Power Rating
125W x 2 @ 4Ω
≤1.0% THD+N

Number of Channels:     2

Rated Power
(RMS Continuous Power):     
125 Watts x 2 @ 4-Ohm
200 Watts x 2 @ 2-Ohm
400 Watts x 1 @ 4-Ohm Bridged

Total Power
(Sum of Rated Power):     400 Watts

Dynamic Power
(PVC/PowerCube®):     
149 Watts x 2 @ 4-Ohms 0° Res
256 Watts x 2 @ 2-Ohms 0° Res

Bridgeable

Frequency Response:     20Hz to 20kHz +/- 1.0dB

Efficiency (average):     72% @ 4-Ohm

Total Harmonic Distortion (THD+Noise):     
4-Ohm: <1.0%
2-Ohm: <1.0%

Crossover Controls:     High-Pass: 50Hz-250Hz @ 12dB/octave Butterworth

Low-Pass: 50Hz-250Hz @ 12dB/octave Butterworth

All-Pass

• Tone Controls:     Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz
• Function depends upon LP/AP/HP switch position

• Input Sensitivity:     150 mV - 12 V
• Signal Input:     Hi/Low level: 1 RCA pair
• Signal Output:     Low level: 1 RCA pair
• Power Input Connector:     Captive C-Clamp
• Power Wire Gauge:     8 AWG to 4 AWG
• Speaker Output Connector:     Captive C-Clamp
• Speaker Wire Gauge:     8 AWG to 18 AWG
• Heat Sink Type:     Cast aluminum
• Cooling:     Convection
• Remote Controls:     Optional Punch Level Control (PLC2) Ready

Visual Indicators:     

• Power/Protect/Thermal LED
• Input Clip LED
• Output Clip LED

• Circuit Topology Class:     Class-A/B
• Operating Voltage:     9 - 16 VDC

Recommended Fuse(not included):     60 A

• Max. Current Draw (13.8V Sinewave):     55 A
• Average Current Draw (13.8V Music):     28 A
• Suggested Alternator:     75 A

• Shipping Weight:     10.5 Lbs. (4.76 Kg.)
• Dimensions (H x W x D):     2.38 x 7.76 x 11.03 (in) 6.05 x 19.71 x 28.02 (cm)