DS18

DS18 MP.4A Full-Range 4 Channel Class D Amplifier - 4 x 40W RMS @ 4-Ohm [MP.4A]

Name: DS18 MP.4A Full-Range 4 Channel Class D Amplifier - 4 x 40W RMS @ 4-Ohm [MP.4A]
Brand: DS18
SKU: SM-104341
Price: 179.95 USD
Availability: InStock

$179.95

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Product Description

DS18 MP.4A Full-Range 4-Channel Class D Amplifier [MP.4A]

Conquer the toughest environments with the DS18 MP.4A, a rugged 4-channel Class D amplifier built for marine, powersports, and all-weather adventures. Encased in a striking brushed red aluminum chassis, this compact powerhouse delivers crystal-clear, full-range audio while withstanding water, dust, vibrations, and corrosive salt spray—ensuring your soundtrack never skips a beat on dusty trails or open waves.

Key Features:

Robust Power Output: 4 x 40W RMS @ 4-Ohm (480W peak total) for dynamic, distortion-free sound across all frequencies, with 80% efficiency and a damping factor of 200 for tight, responsive bass.
Weatherproof Durability: IP55-rated waterproofing and salt/fog protection make it ideal for harsh outdoor use, from off-road ATVs to boat decks.
Effortless Installation: Ultra-compact design fits virtually anywhere; includes a direct power harness for quick, hassle-free setup without complex wiring.
Superior Audio Performance: 20Hz-20kHz frequency response, 82dB signal-to-noise ratio, and just 0.1% THD for clean, immersive listening; fixed 2.5V low-level inputs ensure reliable connectivity.

Specifications:

Category	Details
Amplifier Class	Digital (D)
Channels	4 (Full-Range)
RMS Power @ 4-Ohm	4 x 40W
Peak Power	480W
Frequency Response	20Hz - 20kHz
Signal-to-Noise Ratio	82dB
Total Harmonic Distortion (THD)	0.1%
Efficiency @ 4-Ohm	80%
Damping Factor	200
Input Range	2.5V (Fixed Low-Level)
Waterproof Rating	IP55 (with Salt/Fog Protection)
Dimensions	Compact (exact size not specified; fits tight spaces)
Operating Voltage	10-15V DC (standard automotive/marine)

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Top Testimonials

''Awesome discounts on fishing reels and GPSs. Plus they have next day shipping. The convenience of online shopping is awesome, especially since it's getting harder to get around in store.
They made sure I got the electronics I needed and all the hardware for the install. They even do repair and installs, so I ended up hiring them for the work I needed done on my Mercury. Awesome experience.''

JAMES

"Great experience! I Was looking to purchase a head gaskets for my Johnson 150 hp outboard motor. Mike & Ashley researched parts I needed and come to find out they turned me on to my outboard engine used O-Rings to reassemble my head covers and provided me with parts and torque specs! Thanks! 100% positive feedback and Recommend this Family Business if you need Marine Supplies."

SCOTT

Family owned and operated, which is a huge plus for me! I was browsing the website looking at Garmin gps units, their prices are great and competitive! I reached out to them to ask where I might find a hard to find lower unit part I was needing. They had it in stock! If they don’t have something in stock, they will get it asap! 100% recommend and I will buy from them again in the future!

MATT

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DS18 MP.4A Full-Range 4 Channel Class D Amplifier - 4 x 40W RMS @ 4-Ohm [MP.4A]