JL Audio RD Car 5 Channel 900 W System Amplifier - RD900/5+



SLEEK, POWERFUL, PACKED WITH VALUE
The look is amazing, and the performance backs it up. Designed as a total “one-box solution,†this RD series amplifier from JL Audio can comfortably drive a complete 4-satellite speaker system plus a subwoofer — all with a robust 900 watts of power.

WHAT YOU'LL LOVE

EFFICIENT CLASS-D DESIGN
Small size, minimal heat and lots of power — Class-D amplifier design offers significant advantages. And our NexD™ switching technology adds even more, using enhanced pulse width modulation techniques to boost the amplifier’s bandwidth while minimizing distortion and improving efficiency.

CLEAN, POWERFUL, RELIABLE
Churning out 900 watts of total power — 100 watts from each of its 4 channels into a 2-ohm load (14.4 volts, 1% THD) plus a robust 500 watts for a subwoofer — this RD series amp brings stunning output to your audio system. Each pair of main channels is also fully bridgeable, enabling an ultrapowerful 3-channel amplifier setup.

STUDIO-GRADE SIGNAL PROCESSING
Each of the amplifier’s main channels is equipped with a 12-decibel/octave high-pass filter, with an additional band-pass filter on its rear channels and a dedicated low-pass filter for the subwoofer channel. All 3 crossovers offer continuously variable frequency selection from 50–500 Hz for precise filtering.

LED CLIPPING INDICATOR RINGS
An LED clipping indicator light on the control panel lets you quickly set your amplifier’s input sensitivity, without the need for additional test equipment.

EASY CONNECTIVITY
With “input type†switches on the stereo channel sections, RD series amps can eliminate the need for Y-adapters when bridging stereo output channels.

BAND-PASS CROSSOVER
When used as a system amplifier, the band-pass crossover feature enables a two-way active configuration.
AUDIO TECHNOLOGIES
DIFFERENTIAL-BALANCED INPUTS
Combating induced cable noise, 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.
NEXD SWITCHING TECHNOLOGY
Using enhanced pulse width modulation techniques, NexD technology achieves exceptional audio fidelity and efficiency while delivering high-power output from very compact amplifier designs.
| GENERAL | |
|---|---|
| Warranty | 2 years |
| Channels | 5 |
| Physical dimensions (Height) | 2.13" (54 mm) |
| Physical dimensions (Width) | 14.66" (372 mm) |
| Physical dimensions (Depth) | 6.96" (177 mm) |
| Weight | 7.15 lbs (3.6 kg) |
| Operating voltage | 10-15 VDC |
| Operating temperature range | –4º to 149º F (–20º to 65º C) |
| Audio | |
| Amplifier class | Class D |
| Rated continuous (RMS) power (14.4 V input @ 4 Ohm < 1% THD) | Main: 70 W x 4 Sub: 225 W x 1 |
| Rated continuous (RMS) power (14.4 V input @ 2 Ohm < 1% THD) | Main: 100 W x 4 Sub: 500 W x 1 |
| Rated continuous (RMS) power (12.5 V input @ 4 Ohm < 1% THD) | Main: 60 W x 4 Sub: 200 W x 1 |
| Rated continuous (RMS) power (12.5 V input @ 2 Ohm < 1% THD) | Main: 90 W x 4 Sub: 350 W x 1 |
| Signal-to-Noise Ratio, referred to highest rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs - Main Channels | >104 dB |
| Signal-to-Noise Ratio, referred to highest rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs - Subwoofer Channel | >103 dB |
| Signal-to-Noise Ratio, referred to 1 W (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs - Main Channels | >84 dB |
| Signal-to-Noise Ratio, referred to 1 W (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs - Subwoofer Channel | >83 dB |
| Damping factor @ 4 Ω | >150/50 Hz |
| Damping factor @ 2 Ω | >75/50 Hz |
| THD+N @ Rated Power: Main Channels | <1% @ 4 Ω |
| THD+N @ Rated Power: Subwoofer Channel | <1% @ 4 Ω |
| Frequency response (+0, -1dB): Main Channels | 12 Hz-22 kHz |
| Frequency response (+0, -1dB): Subwoofer Channel | 10 Hz-500 Hz |
| Input voltage range @ RCA inputs | Switchable from 200 mV-2 V RMS (Low) to 800 mV-8 V RMS (High) |
| Input impedance | 10 kΩ (Low) 2.7 kΩ (High) |
| Current consumption (Idle) | 1,900 mA-2,000 mA |
| Current consumption (Max) | 70-80A |
| Fuse rating | 80 A |
| Recommended fuse type(s) | AFS, AGU or MaxiFuseâ„¢ |
| Min. copper power/Ground wire gauge | 4 AWG wire |
| Protection circuits | Over temperature, Ground short, Speaker overcurrent |
| Signal Processing | |
| Filter mode(s): Channels 1 & 2 | High-pass only (Off, x1, x10) |
| Filter Slope(s): Channels 1 & 2 | 12 dB/octave |
| Filter frequency range: Channels 1 & 2 | 50 Hz-500 Hz (x10: 500 Hz-5 kHz) |
| Filter mode(s): Channels 3 & 4 | Off, High-pass or Bandpass |
| Filter Slope(s): Channels 3 & 4 | 12 dB/octave |
| Filter frequency range: Channels 3 & 4 | 50 Hz-500 Hz |
| Filter mode(s): Subwoofer Channel | Off/Low-pass |
| Filter slope(s): Subwoofer Channel | 12 dB/octave |
| Filter frequency range: Subwoofer Channel | 50 Hz-500 Hz |
| Detented, calibrated filter frequent potentiometers | Yes |
| Remote level control | Optional (RBC-1) |
| Remote level modes | Sub Channel only |
| Channel input mode switch | yes (2/4/6 Channels) |
| Pass-through preamp output | Buffered |
| In the box | |
| In the Box | RD 5-channel system amplifier Hex wrench Documentation |