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JL Audio MX280/4, MX Series Class D Full-Range 4-Ch Amplifier, 70W x 4
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.
NexD™ Switching Technology
NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from very compact amplifier designs.
Differential-Balanced Inputs
JL Audio’s Differential-Balanced Inputs are engineered to combat induced cable noise, which is a common problem in car and marine audio installations. This technology allows for the use of conventional RCA cables, while delivering many of the benefits of a true balanced connection and accepting a wide range of input signal levels.
| Weather Resistance | IPX6 |
|
Number of Channels |
4 |
|
Class |
D |
|
Peak Power Rating (Watts) |
|
|
RMS Power Rating (Watts x Channels) - 4 Ohms |
50 x 4 |
|
RMS Power Rating (Watts x Channels) - 2 Ohms |
70 x 4 |
| RMS Power Rating - Bridged | 140 x 2 |
| Minimum Impedance Unbridged (Ohms) |
2 |
| Minimum Impedance Bridged (Ohms) |
4 |
| THD at Rated RMS Power |
1% |
| Bulit-in Crossover - Low Pass |
Yes |
| Built-in Crossover - High Pass |
Yes |
| High Pass Crossover Frequency (Hz) |
35-300Hz |
| Low Pass Crossover Frequency (Hz) |
35-300Hz |
| Signal-to-Noise Ratio |
89dB |
| Bass Boost |
No |
| Bass Remote Included |
No |
| Fuse Rating | 35A |
| CEA-2006 Compliant | Yes |
| Maximum Power Wire Gauge Size | 8 Gauge |
| Warranty | 1 Year |
| Weather Resistance | IPX6 |
|
Number of Channels |
4 |
|
Class |
D |
|
Peak Power Rating (Watts) |
|
|
RMS Power Rating (Watts x Channels) - 4 Ohms |
50 x 4 |
|
RMS Power Rating (Watts x Channels) - 2 Ohms |
70 x 4 |
| RMS Power Rating - Bridged | 140 x 2 |
| Minimum Impedance Unbridged (Ohms) |
2 |
| Minimum Impedance Bridged (Ohms) |
4 |
| THD at Rated RMS Power |
1% |
| Bulit-in Crossover - Low Pass |
Yes |
| Built-in Crossover - High Pass |
Yes |
| High Pass Crossover Frequency (Hz) |
35-300Hz |
| Low Pass Crossover Frequency (Hz) |
35-300Hz |
| Signal-to-Noise Ratio |
89dB |
| Bass Boost |
No |
| Bass Remote Included |
No |
| Fuse Rating | 35A |
| CEA-2006 Compliant | Yes |
| Maximum Power Wire Gauge Size | 8 Gauge |
| Warranty | 1 Year |
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to