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Description

DS18 MP.4A

The MP.4A is a 4‑channel Class D full‑range marine and powersports amplifier designed to withstand rugged outdoor conditions such as boats, ATVs, UTVs, motorcycles, and off‑road environments. It’s built in a compact, IP55‑rated water‑resistant housing with salt and fog protection, making it ideal for environments exposed to moisture and dust. With 4 × 40 W RMS output, it delivers clear, full‑range audio across a wide frequency band, and features easy connectivity with 3.5 mm input and RCA outputs for flexible system integration.


Specifications

Specification Details
SKU MP.4A
Total Watts (Peak) 480W
RMS Power @ 4Ω 4 × 40W
Frequency Response 20Hz – 20KHz
Signal-to-Noise Ratio 82dB
Efficiency @ 4Ω 80%
Damping Factor 200
Total Harmonic Distortion (THD) 0.1%
Low Level Input Range 2.5V (Fixed)

FEATURES 1
Specification Details
Amplifier Class Digital (Class D)
Amplifier Type Stereo Full Range
Number of Channels 4
Minimum Impedance 4Ω Stereo (Not Bridgeable)
Power Input Terminal Size 16GA
Fuse Size 20A
Voltage Operation 9–15V DC
Thermal Protection Yes (>75°C)

FEATURES 2 / BUILD
Specification Details
Body Color / Finish Brushed Red Aluminum
Input Audio Connector 3.5mm Jack
Audio Output Yes, RCA Left and Right
Water-Resistant Rating IP55
Salt Fog Protection Yes
Power Direct Harness Design Yes
Surface Mount Component Technology Yes
Marine Grade Fuse Holder Yes

MEASUREMENT
Specification Details
Overall Length 6 in / 153 mm
Overall Width 3.66 in / 93 mm
Overall Height 1.96 in / 50 mm
Heatsink Length 4.72 in / 120 mm
Gross Single Unit Weight 1.62 lb / 735 g

Product Overview

In the rugged world of motorsports, where water, dust, and vibrations relentlessly test your audio gear, the MP.4A stands strong. Encased in a striking brushed red aluminum body, it’s not only stylish but also exceptionally durable. The MP.4A is designed to brave the elements with its IP55 waterproofing, ensuring your music never falters, whether you’re embarking on a dusty off-road adventure or a serene seaside drive. And for added protection, we’ve fortified the MP.4A with Salt & Fog Protection.

Connecting your audio source is a breeze, thanks to the 3.5mm jack input audio connector and RCA left and right audio outputs. These features allow you to seamlessly link other amps to it or integrate it into your current system. Every note and beat are faithfully reproduced, thanks to a raw MAX Power of 480W, delivering an exhilarating sensory experience that will send shivers down your spine. The continuous power output of 4 x 40W RMS ensures unmatched clarity and precision in your sound, with a frequency response spanning from 20Hz to 20KHz and a signal-to-noise ratio of 82dB, making every note crisp and every beat pronounced.

Installation is a breeze, thanks to the MP.4A’s power direct harness design, eliminating unnecessary complexity while maximizing performance. What sets the MP.4A apart is not just its performance but also its compact size. It’s so small that it can fit almost anywhere in your setup. It also incorporates surface mount component technology, ensuring reliability and longevity even in the harshest conditions. No need for complicated adjustments; it arrives ready to pump out your favorite tunes with crystal-clear precision, allowing you to fully immerse yourself in the music.

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Questions and Answers

Q1: What is the MP.4A?

A1: The MP.4A is a 4‑channel Class D full‑range marine and powersports amplifier built for rugged outdoor use with water and dust resistance.

Q2: How much power does the MP.4A produce?

A2: It delivers 4 × 40 W RMS @ 4 Ω with a total of about 480 W peak output.

Q3: Is this amplifier waterproof?

A3: Yes — it has an IP55 water‑resistance rating and special salt/fog protection for outdoor environments.

Q4: What inputs does it have?

A4: It has a 3.5 mm audio input and RCA left/right audio outputs for easy connection to audio sources and other amps.

Q5: Is this amp suitable for marine or powersports audio systems?

A5: Yes — with its water resistance, salt/fog protection, and compact design, it’s ideal for marine, ATV/UTV, motorcycle, and other outdoor audio setups.


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