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JL Audio RD500/1, RD Series Class D Mono Amplifier, 500W
Born to produce a whopping 500 watts into 2 ohms (14.4V, 1% THD), the RD500/1 amplifier was engineered to generate tons of pure subwoofer bliss from a sleek, ultra-compact chassis. The secret behind its power proficiency is our proprietary NexD™ switching technology, which delivers large amounts of power output with precise efficiency and ultra-low distortion.
For your convenience, the RD500/1’s controls are located on top of the amplifier, beneath a protective cover, with all connections found along one side of its chassis. Signal processing features include a 12 dB / octave low-pass filter, with continuously variable frequency selection from 50-500 Hz, and a variable bass boost EQ. Dual-range, differential-balanced inputs are also on-hand, capable of accepting most input voltage levels. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard, along with a set of preamp outputs so you can easily pass signals to another amplifier.
The RD500/1 is also equipped with an onboard LED-clipping indicator. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity setting, quickly and accurately, with no special equipment needed. The RD500/1 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer output directly from the driver’s seat.
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.
Number of Channels |
1 |
Class |
D |
Peak Power Rating (Watts) |
|
RMS Power Rating (Watts x Channels) - 4 Ohms |
250 x 1 |
RMS Power Rating (Watts x Channels) - 2 Ohms |
500 x 1 |
RMS Power Rating (Watts x Channels) - 1 Ohm |
N/A |
RMS Power Rating - Bridged | N/A |
Minimum Impedance Unbridged (Ohms) |
2 |
Minimum Impedance Bridged (Ohms) |
N/A |
THD at Rated RMS Power |
1% |
Bulit-in Crossover - Low Pass |
Yes |
Built-in Crossover - High Pass |
N/A |
High Pass Crossover Frequency (Hz) |
N/A |
Low Pass Crossover Frequency (Hz) |
50-500hz |
Signal-to-Noise Ratio |
60dB |
Bass Boost |
0-12dB |
Bass Remote Included |
No |
Fuse Rating | 40A |
CEA-2006 Compliant | Yes |
Maximum Power Wire Gauge Size | 4 Gauge |
Warranty | 1 Year |
Number of Channels |
1 |
Class |
D |
Peak Power Rating (Watts) |
|
RMS Power Rating (Watts x Channels) - 4 Ohms |
250 x 1 |
RMS Power Rating (Watts x Channels) - 2 Ohms |
500 x 1 |
RMS Power Rating (Watts x Channels) - 1 Ohm |
N/A |
RMS Power Rating - Bridged | N/A |
Minimum Impedance Unbridged (Ohms) |
2 |
Minimum Impedance Bridged (Ohms) |
N/A |
THD at Rated RMS Power |
1% |
Bulit-in Crossover - Low Pass |
Yes |
Built-in Crossover - High Pass |
N/A |
High Pass Crossover Frequency (Hz) |
N/A |
Low Pass Crossover Frequency (Hz) |
50-500hz |
Signal-to-Noise Ratio |
60dB |
Bass Boost |
0-12dB |
Bass Remote Included |
No |
Fuse Rating | 40A |
CEA-2006 Compliant | Yes |
Maximum Power Wire Gauge Size | 4 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