MX-Series 4-Channel Class-D Marine-Grade Amplifier, 70-Watts x 4ch @ 2-Ohm or 50-Watts x 4ch @ 4-Ohm
Engineered specifically for powersports applications, the 4-channel MX280/4 amplifier employs JL's 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 black powder-coated finish, a gasketed cover for the controls and stainless steel hardware for durability.
Specifications
Frequency Response
20 Hz - 20 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power
>89.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W
>68 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω
>60 / 50 Hz
Damping Factor @ 2 Ω
>30 / 50 Hz
THD+N @ Rated Power
<1% @ 2 Ω per Ch.
Input Voltage Range @ RCA Inputs
Switchable from 250 mV - 4 V RMS (Low) to 750 mV - 15 V RMS (High)
Min.Copper Power / Ground Wire Gauge
8 AWG wire
Fuse Rating
35 A (AFS, AGU or MaxiFuse™)
@ 4 Ω
50 W RMS x 4
@ 2 Ω
70 W RMS x 4
Bridged @ 4Ω
140 W RMS x 2
JL Audio MX280/4 Manual
