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Rockford Fosgate
Rockford Fosgate M400-4D - 4-channel marine amplifier — 75 watts x 4 channels
$275.99
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Rockford Fosgate M400-4D - 4-channel marine amplifier — 75 watts x 4 channels
About the Rockford Fosgate M400-4D
High power from a compact amp
Rockford Fosgate's compact marine amplifiers provide high-efficiency Class-D power for your marine audio system. They meet tough UV and Salt-Fog protection standards, so you can install them with confidence in your pleasure craft, whether you're blasting across inland waterways, or cruising out to your favorite salt-water fishing grounds.
Power your speakers or subs
The M400-D4 4-channel amp delivers the power you need to drive two pairs of full-range speakers in your boat, sending 75 watts continuous power to each speaker. If you want to power a pair of subs, you can bridge the amp to 2-channel mode, sending 200 watts to each subwoofer — plenty of kick if you want some bass on board.
The amp features variable frequency filters to adjust the amp's output to your system, whether you're running full-range speakers or subs. And the compact footprint makes it easy to mount the amp in a small storage locker or other tight spot.
Product highlights:
- 4-channel marine amplifier
- 75 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
- 200 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)
- conformal-coated circuit board and UV-resistant finish
- variable high- and low-pass filters (50-500 Hz, 12 dB per octave)
- variable bass boost (0-12 dB at 45 Hz)
- three auto-turn on modes
- CEA-2006 compliant
- preamp-level inputs and outputs
- 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
- 9-1/8"W x 2"H x 6-7/8"D
- warranty: No Warranty, since its an older model
- Our 14-day money-back guarantee
- MFR # M400-4D
30-Day Return Policy
At Fuego Bass Shop, we want you to be fully satisfied with your purchase. You can return most products within 30 days of delivery for a refund or exchange.
Please note: Any returns with physical damage or missing original packaging may incur a deduction.
Restocking Fee: A 15% restocking fee will be deducted from your refund to cover handling and restocking.
Refunds will be processed to your original payment method within 5–7 business days after we receive and inspect the returned item.
We ship within the United States (excludes recipients in Alaska, Hawaii, Puerto Rico, U.S. Virgin Islands, and Guam).
At Fuego Bass Shop, we understand the thrill of receiving your car audio equipment quickly. Our shipping process is designed to ensure your order arrives safe, fast, and ready to pump bass.
Most orders are processed within 1–2 business days. Standard shipping usually takes 3–7 business days depending on your location. Expedited shipping is available for select items during checkout.
Once your order is shipped, you will receive a tracking number via email so you can follow your gear every step of the way. Our packaging is designed to protect high-performance audio equipment from bumps, vibrations, and shocks during transit.
Please note: Delivery times may vary during holidays, promotions, or due to carrier delays. We highly recommend verifying your shipping address before completing checkout to avoid delays.
If you have any questions about your shipment or need assistance, our support team is ready to help. We want your experience with Fuego Bass Shop to be as powerful and smooth as our bass systems!
