JL Audio Marine amplifier MX280/4

JL Audio MX280/4 MX Series 4-Channel 70W RMS x 4 at 2 Ohms, Class-D Full-Range Marine Amplifier

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What's Inside?

• MX Series 4-Channel Class-D Full-Range Marine Amplifier
• 4-channel marine amp with 12" pigtails and 35A fuse
• (4) Self-tapping screws (1" length)
• Spare 35A ATO fuse
• Owner's Manual

 

 

Powerful 4-Channel Class D Amplifier for Unmatched Powersports Audio

Elevate your audio experience with this 4-Channel Class D Full-Range Amplifier, delivering 70W x 4 @ 2 Ω or 50W x 4 @ 4 Ω (14.4V). Perfect for motorcycles, ATVs, and utility vehicles, its corrosion-resistant, IPX7-rated cast aluminum chassis ensures durability. With flexible power options of 50W x 4 into 4 ohms or a bridged 140W x 2 into 4 ohms, it’s built for exceptional performance on any adventure.

Versatile Sound Control with Rugged Durability for Any Adventure

Tailor your sound with independent front and rear crossovers for full-range, high-pass, or low-pass filtering, and enjoy versatility with a dual-range input section that accepts both line-level and high-power speaker signals. Built for durability, this amplifier features a rugged powder-coated finish, gasketed control cover, and stainless steel hardware, making it perfect for any adventure.

Unleash Superior Sound with NexD™ Switching Technology

Experience the MX280/4 Amplifier, equipped with NexD™ Switching Technology for exceptional audio quality and efficiency in a compact design. Engineered for powersports, it delivers clean, powerful sound with minimal distortion and rock-solid bass performance, ensuring your audio experience reaches new heights on any adventure.

SPECIFICATIONS

Low Frequency Response : 35-300 Hz

High Frequency Response : 35-300 Hz

Number of Channels : 4

Frequency Response : 20-20000 Hz

Built In Crossovers : Yes

RMS Power Output : 4x70 Watts

Channel Separation : Yes

Amplifier Class : D

Fuse Rating : 1x35 A

Promo : Yes

FEATURES

Features:

4-Channel Class D Full-Range Amplifier: 70 W x 4 @ 2 Ω / 50 W x 4 @ 4 Ω (14.4V)
Designed for Powersports Applications: Ideal for motorcycles, ATVs, and utility vehicles
NexD™ Switching Technology: Delivers clean power without overloading charging systems
Corrosion-Resistant Chassis: Compact, cast aluminum design with IPX7 water-resistance rating
Flexible Power Configuration: 50 W x 4 into 4 ohms; fully bridgeable to 140 W x 2 into 4 ohms
Independent Front and Rear Crossovers: Selectable full-range, high-pass, or low-pass filter controls
Dual-Range Input Section: Accepts both line-level and high-power speaker level signals
Durable Construction: Features rugged powder-coated finish, gasketed control cover, and stainless steel hardware for long-lasting durability

 
Specifications:

RMS Power Output (Watts x Channels): 50 x 4
Signal to Noise Ratio: 89 dB
Input Voltage: 14.4v
Power at 2 Ohms (Watts x Channels): 70 x 4
Bridged Power (Watts x Channels): 140 x 2
Minimum Impedance Bridged: 4
Minimum Impedance Unbridged: 2
Amplifier Class: D
Low-Pass Crossover Frequency: 35-300 Hz
Low-Pass Slope (dB/octave): 12 dB/octave
High-Pass Crossover Frequency: 35-300 Hz
High-Pass Slope (dB/octave): 12 dB/octave
Fuse Rating: 35
Speaker Level Inputs: Yes
Height (inches): 1-13/16
Width (inches): 8-11/16
Depth (inches): 3-1/8

UPC: 699440984058
Weight: 5
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Warranty: 2 Year(s) Warranty.This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.


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absolutely what has been missing from my car, this is the perfect fit







Kamilla

11/11/2019













Great amp for what I needed. space has been one of my issues in my boat and having this is really a huge help. Its got some good power and is able to handle the speakers, so good addition to have. It fits in tight spaces.







C. Murphy

6/6/2024













perfect for what I've been looking for. thanks JL Audio!







Joe

3/12/2025













Great amp for the price! Got it installed in my Harley and it didn't even take more than 20 minutes. No problem pushing the speakers to their best sound.







Prime

3/20/2025