Description
Included in this kit
This bundle includes a JL Audio RD900/5+ RD car 5-channel system amplifier (900 watts), and a JL Audio LoC-22: Fully Active, Two-Channel Speaker Level to Line Output Converter with Auto Turn-On.
1x JL Audio RD900/5+ RD car 5-channel system amplifier (900 watts) (RD900/5+)
JL Audio RD900/5+
RD car 5-channel system amplifier (900 watts)
SLEEK, POWERFUL, PACKED WITH VALUEThe 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.
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.
Specifications:
General
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)
Warranty: 2 years
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 MaxiFuse™
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:
RD 5-channel system amplifier
Hex wrench
Documentation
1x JL Audio LoC-22: Fully Active, Two-Channel Speaker Level to Line Output Converter with Auto Turn-On (LOC-22)
JL Audio LoC-22
Fully Active, Two-Channel Speaker Level to Line Output Converter with Auto Turn-On
Fully Active, Two-Channel Speaker Level to Line Output Converter with Auto Turn-On
Designed by JL Audio Sr. Engineer Bruce Macmillan, the LoC-22 is an active two-channel processor engineered for applications requiring the attenuation of factory audio signals for use with aftermarket amplifiers and signal processors.
The LoC-22 utilizes a fully regulated, switching MOSFET power supply and an all-analog circuit design to deliver flat frequency response, at any signal level (3 Hz – 32 kHz, +0, -1dB), without altering bass response at high levels, like many passive line output converters do.
Engineered to combat induced cable noise, the LoC-22 features a differential-balanced input architecture making it compatible with virtually any analog audio signal. Capable of accepting up to 40V RMS per channel (equivalent to 400W @ 4 ohms), the LoC-22 easily handles the most powerful factory amplifier outputs. An onboard dual-range input load switch allows compatibility with most factory amplifiers that employ impedance sensing to mute channels.
Ideal for full-range or low-frequency applications, the LoC-22 is equipped with a pair of analog RCA-type, line-level output jacks (up to 8V RMS) to feed audio signals to your aftermarket system. Analog outputs are compatible with most types of aftermarket signal processors or amplifiers. Setting output levels is super simple and easy, thanks to a specially calibrated, onboard clipping indicator that works with test tones or music. The LoC-22 offers two automatic turn-on methods (DC-Offset Sensing or Signal Sensing) and provides a positive 12V turn-on output to activate aftermarket amplifiers or other downstream electronics.
The LoC-22 includes the following features:
- Fully active, all analog circuit design by Bruce Macmillan, handles powerful factory amplifier outputs, up to 40 volts per channel
- Differential-balanced input architecture offers noise rejection and compatibility with most analog outputs from OEM source units and amplifiers
- Dual range input load switch (20 kΩ/Normal, 60 Ω/Low Z, thermally protected) for maximum compatibility with OEM amplifiers
- One stereo pair of crystal-clear, line-level RCA output jacks (up to 8V RMS)
- Automatic turn-on via DC-Offset or Signal-Sensing
- A dedicated 12V remote turn-on output (maximum 100 mA) to activate aftermarket signal processors or amplifiers
- Onboard LED clipping indicator makes output level setting quick & easy
- Ultra-compact chassis design fits into just about any installation location!
Specifications
| Power Supply Type | Switching, MOSFET PWM, Regulated |
| Operating Voltage | 9 - 16 V DC |
| Standby Current Draw | <1.6 mA |
| Operating Current Draw | 0.13 A at 13.8V |
| Frequency Response | 3 Hz - 32 kHz (+0 dB, -1dB) |
| S/N Ratio @ 2V RMS | Gain at Min: 118 dB Gain at Max: 103 dB (20 kHz Bandwidth) |
| Remote Output Capacity | 100 mA (maximum) |
| Recommended Fuse Value | 1 A |
| Recommended Fuse Type | Fast-Acting, ATO/ATC or similar |
| Input Channels | Two |
| Input Type | Differential-Balanced |
| Input Voltage | 40V RMS per channel (maximum) |
| Input Impedance | Normal: 20kΩ Low Z: 60Ω |
| Turn-On Threshold | Signal-Sensing: 5 mV On/3.5 mV Off at1 kHz (Left Input) DC-Offset: 4.5 V |
| Output Channels | Two |
| Analog Output | Unbalanced, stereo RCA jacks |
| Max. Unclipped Output | 8V RMS |
| Output Impedance | 450 Ω |
| Gain Range | -27.3 dB (full CCW) to +3.2 dB (full CW) |
| THD+N | 0.01% at 2V RMS (1kHz) |
Physical Specifications

| Height (H) | 1.23 in / 31 mm |
| Width (W) | 4.72 in / 120 mm |
| Depth (D) | 3.04 in / 77 mm |
| Net Weight | 2.58 lb / 1.17 kg |