Overview: MX Marine Amplifiers

Compact, powerful and versatile, MX amplifiers are built to deliver amazing sound from the smallest of spaces, plus they're water-resistant.

Employing JL Audio's highly-efficient NexD™ Class D technology, MX amplifiers generate lots of high-fidelity sound, while being kind to small charging systems. Housed in a cast aluminum chassis, MX amps are ultra-compact and water-resistant, making them perfect for installations in boats and small watercraft. Onboard filters and signal processing allow easy set-up and system flexibility. The optional M-RBC-1 (sold separately) allows subwoofer level control (MX300/1 or MX500/1) remotely from the captain's chair. Return to MX amplifiers.

MX Amplifier Overview Image MX500/1 Amplifier Overview Image MX280/4 Amplifier Overview Image MX500/4 Amplifier Overview Image

Model

MX300/1
(Monoblock Class D Wide-Range Marine Amplifier)

MX500/1
(Monoblock Class D Wide-Range Marine Amplifier)

MX280/4
(4-Channel Class D Full-Range Marine Amplifier)

MX500/4
(4-Channel Class D Full-Range Marine Amplifier)

Continuous RMS Power
@ 14.4 V

160 W x 1 @ 4 Ω
220 W x 1 @ 3 Ω
300 W x 1 @ 2 Ω

300 W RMS x 1 @ 4 Ω
400 W RMS x 1@ 3 Ω
500 W RMS x 1 @ 2 Ω

50 W x 4 @ 4 Ω
70 W x 4 @ 2 Ω
140 W x 2 Bridged @ 4 Ω

70 W x 4 @ 4 Ω
125 W x 4 @ 2 Ω
250 W x 2 Bridged @ 4 Ω

Continuous RMS Power
@ 12.5 V

160 W x 1 @ 4 Ω
200 W x 1 @ 3 Ω
250 W x 1 @ 2 Ω

250 W RMS x 1 @ 4 Ω
300 W RMS x 1@ 3 Ω
400 W RMS x 1 @ 2 Ω

36 W x 4 @ 4 Ω
52 W x 4 @ 2 Ω
100 W x 2 Bridged @ 4 Ω

55 W x 4 @ 4 Ω
90 W x 4 @ 2 Ω
180 W x 2 Bridged @ 4 Ω

Frequency Response
(+0,-1dB)

20 Hz - 12 kHz

20 Hz - 12 kHz

20 Hz - 20 kHz

20 Hz - 20 kHz

S/N Ratio (re rated power)

>85 dBA (20 kHz bandwidth)

>97 dBA (20 kHz bandwidth)

>89.5 dBA (20 kHz bandwidth)

>88 dBA (20 kHz bandwidth)

Damping Factor

>150/ 50 Hz @ 4 Ω,
>75 / 50 Hz @ 2 Ω

>115/ 50 Hz @ 4 Ω,
>54 / 50 Hz @ 2 Ω

>60/ 50 Hz @ 4 Ω,
>30 / 50 Hz @ 2 Ω

>92 / 50 Hz @ 4 Ω,
>43 / 50 Hz @ 2 Ω

THD+N @ Rated Power

<1% @ 2 Ω

<1% @ 2 Ω

<1% @ 2 Ω

<1% @ 2 Ω

Crossover Filter Modes, Slope, Frequency Range

Low-Pass, 24 dB,
40 - 400 Hz, defeatable

Low-Pass, 24 dB,
40 - 400 Hz, defeatable

Low-Pass/High-Pass, 12 dB,
35 - 300 Hz, defeatable

Low-Pass/High-Pass, 12 dB,
35 - 300 Hz, defeatable

Infrasonic Filter,
Sub Polarity

20 - 40 Hz variable/defeatable,
0/180 deg

20 - 40 Hz variable/defeatable,
0/180 deg

N/A

N/A

Bass Boost EQ

0 - +12 dB variable @ 43 Hz

0 - +12 dB variable @ 43 Hz

N/A

N/A

Input Voltage Range

250 mV - 4 V RMS (Low-Level),
750 mV - 15 V RMS (High-Level)

250 mV - 4 V RMS (Low-Level),
750 mV - 15 V RMS (High-Level)

250 mV - 4 V RMS (Low-Level),
750 mV - 15 V RMS (High-Level)

250 mV - 4 V RMS (Low-Level),
750 mV - 15 V RMS (High-Level)

Input Mode Switch

N/A

N/A

2 / 3 / 4 channel

2 / 3 / 4 channel

Pass-Through Preamp Output

N/A

N/A

N/A

N/A

Remote Controller Option: Model, Control Mode

M-RBC-1,
low-pass level only

M-RBC-1,
low-pass level only

N/A

N/A

PWR-GND Wire /
Fuse Rating

8 AWG / 30 A

4 AWG / 50 A

8 AWG / 35 A

4 AWG / 50 A

Dimensions

1.77 in x 8.66 in x 3.09 in /
45 mm x 220 mm x 78.5 mm

1.77 in x 9.33 in x 4.50 in /
45 mm x 237 mm x 115 mm

1.77 in x 8.66 in x 3.09 in /
45 mm x 220 mm x 78.5 mm

1.77 in x 9.33 in x 4.50 in /
45 mm x 237 mm x 115 mm

MX Amplifiers include the following JL Audio technologies and features:

NexD Logo

NexD™ Switching Technology

NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from very compact amplifier designs.

Return to MX amplifiers.

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