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JL Audio  |  SKU: 98405

MX280/4 Amplifier

$32999

Engineered specifically for powersports applications, the 4-channel MX280/4 amplifier employs our high-speed NexD™ switching design to deliver plenty of clean power, without straining charging systems. Its tiny, cast aluminum chassis is highly resistant to corrosion, with an IPX7 water-resistance rating, making it perfect for motorcycles, ATV’s or other utility vehicles.

Generating a solid 50W x 4 into 4 ohms (14.4V, 1% THD), the MX280/4 is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a potent 140W x 2 into 4 ohms.

Other features include independent front and rear crossovers with selectable full-range, high-pass or low-pass filter controls and a dual-range input section that accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals.

This amplifier features a rugged powder-coated finish, a gasketed cover for the controls and stainless steel hardware for durability.


Barcode: 699440984058
5.0 lb
  • Power Output
    4Ω @ 14.4v = 50 W x4
    4Ω @ 12.5v = 36 W x4
    2Ω @ 14.4v = 70 W x4
    2Ω @ 12.5v = 52 W x4
    4Ω Bridged @ 14.4v = 140 W x2
    4Ω Bridged @ 12.5v = 100 W x2
  • Processing
    Frequency Range: 20 Hz - 20 kHz
    THD+N: <1% @ 2 Ω per Ch.
    S/N Ratio (Highest Rated Power): >89.5db
    S/N Ratio (1w): 68db
    Damping Factor:
    4Ω: >60 / 50 Hz
    2Ω: >30 / 50 Hz
  • Filters
    Filter Mode: Off/HPF/LPF
    Filter Frequency: 35 Hz - 300 Hz
    Filter Slope: 12db
    Infrasonic Filter: No
    Bass Boost: No
  • Physical
    Dimensions:
    W: 8.66" (220 mm)
    H: 3.09"(78.5 mm)
    D: 1.77" (45 mm)
    Weight: 3.18 lb / 1.44 kg)
  • Connections & Audio Routing
    Max Wire Size:
    Power: n/a (min. 4awg)
    Speakers: n/a

    Audio Input: RCA
    Input Modes: Yes (2ch/3ch/4ch)
    Remote Level Control: No
    Pass Through Preamp Output: None
  • Power Input
    Power Input: 12v
    Power Draw:
    - Standby: n/a
    - On: n/a
    Fuse Rating: 35 A
  • Water Rating
    IPx7

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