Overview: HX Amplifiers

Whether you're hitting the open road or tackling the back trails, HX amplifiers are designed to deliver high-performance sound from the smallest of spaces.

Employing JL Audio's highly-efficient NexD™ Class D technology, HX amplifiers are engineered to produce plenty of clean, full-range power, without straining small charging systems. Developed specifically for powersports applications, HX amps are encased in tiny, cast aluminum chassis, with a IPX6 water resistance rating, making them ideal for motorcycles, ATV's and utility vehicles. Included crossover filters and signal processing make system set-up a snap. The HX300/1 monoblock includes remote sub level control capabilities via the M-RBC-1 (optional). Return to HX amplifiers.

JL Audio HX300/1 Amplifier JL Audio HX280/4 Amplifier

Model

HX300/1
(Monoblock Class D Full-Range Amplifier)

HX280/4
(4-Channel Class D Full-Range 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

50 W x 4 @ 4 Ω
70 W x 4 @ 2 Ω
140 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

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

Frequency Response
(+0,-1dB)

20 Hz - 12 kHz

20 Hz - 20 kHz

S/N Ratio (re rated power)

>85 dBA (20 kHz bandwidth)

>89.5 dBA (20 kHz bandwidth)

Damping Factor

>150/ 50 Hz @ 4 Ω,
>75 / 50 Hz @ 2 Ω

>60/ 50 Hz @ 4 Ω,
>30 / 50 Hz @ 2 Ω

THD+N @ Rated Power

<1% @ 2 Ω

<1% @ 2 Ω

Crossover Filter Modes, Slope, Frequency Range

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

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

Infrasonic Filter,
Sub Polarity

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

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)

Input Mode Switch

N/A

2 / 3 / 4 channel

Pass-Through Preamp Output

N/A

N/A

Remote Controller Option: Model, Control Mode

M-RBC-1,
sub level

N/A

PWR-GND Wire /
Fuse Rating

8 AWG / 30 A

8 AWG / 35 A

Dimensions

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

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

HX 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.