The Prime M400-4D amplifier
is a 400 Watt 4-channel high efficiency Class-D amplifier specifically
designed for Marine and Powersport applications. The amplifier features a
Marine grade PC Board, and the Class-D circuit topology is so efficient, it
consumes much less current from your charging system over traditional
The M400-4D is a 400 Watt 4-channel high efficiency Class-D marine amplifier
featuring a Marine grade PC Board, on-board Punch EQ, variable crossover and
tri-state protection circuits.
12dB/octave Butterworth crossover
2/4 channel input switch
4 Gauge power/ground connectors
Cast aluminum heatsink
Top mounted controls
Marine grade 2-part epoxy coated PCB
On-board Punch EQ with +18dB boost @ 45Hz.
Tri-stage protection covers thermal, over-current and short circuits.
1 Year Standard Warranty
Element Ready - Amps
These amplifiers are protected against Dust, UV, Corrosion, and feature
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.
- 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.
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.
Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry
standards. These guidelines mean your amplifier's output power ratings are REAL
POWER numbers, not inflated marketing ratings.
This product fulfills all essential safety and environmental requirements as
defined in the European Directives (768/2008 EC).
The ce mark is the official marking required by the European Community for
all Electrical and Electronic equipment (and others) that will be sold, or put
into service for the first time, anywhere in the European community.
It proves to the authorities, but also to the buyer -or user- that this product
fulfills all essential safety and environmental requirements as they are defined
in the so-called European Directives.
The ce marking directive (93/68/EEC) was adopted on 07-22-1993 and updated as
768/2008 EC on 13-8-2008.
The directive gives a detailed description of the initials CE and any other
marks specific to a particular directive and the many ways conformity may be
In return for fulfilling the CE marking requirements, the manufacturer or its
agent gets the permission to cover the entire European market using only one
approval procedure for the topics covered in the applicable directives.
No member state of the European Community can refuse trade of any (electronic or
electrical) product that has been CE marked (unless fraud suspected). For some
products however, national regulations exist, as long as the requirements
covered in these national regulations are not covered by a pan-European
Full Range Class-D
A full-range version of the Class-D topology which is a high efficiency
amplifier design that reduces current consumption from the charging system.
CEA-2006 Power Rating
75W x 4 @ 4Ω
Number of Channels:
Rated Power (RMS Continuous Power):
75 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohm Bridged
Total Power (Sum of Rated Power):
400 Watts RMS
Dynamic Power (PVC/PowerCube®):
79 Watts x 4 @ 4-Ohm
138 Watts x 4 @ 2-Ohm
255 Watts x 2 @ 4-Ohm Bridged
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The following contains specifications and
installation instructions for the following amplifier models:
Dear Customer. We are proud to serve you with any assistance via
or Toll free number at 1-877-330-9758
for USA or (858) 720-0776 for International Customers.