JL Audio® RD Car Monoblock Amplifier Monoblock Amplifier (500 W) (RD500/1)

SLEEK, POWERFUL, PACKED WITH VALUE

The look is amazing, and the performance backs it up. With the RD series of monoblock amplifiers from JL Audio, exclusive NexD™ switching technology generates loads of power with exceptional efficiency. The result: premium audio quality with significantly reduced current draw and heat.

12 DB/OCTAVE LOW-PASS FILTER

SELECTABLE INPUT VOLTAGE: LOW (200 mV TO 2-VOLT RMS) TO HIGH (800 mV to 8-VOLT RMS)

3 TURN-ON OPTIONS: +12-VOLT REMOTE WIRE, SIGNAL SENSING OR DC OFFSET

ONBOARD LED CLIPPING INDICATOR SIMPLIFIES LEVEL SETTING

OPTIMIZE LOW-END AUDIO WITH VARIABLE BASS BOOST EQ

2-YEAR WARRANTY

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

With a choice of 500- or 1000-watt versions — stable to 2 ohms, or a 1500-watt version stable to 1 ohm — the RD series offers a variety of models to drive your subwoofer. The high-efficiency design enables them to run cooler and put less strain on your electrical system than conventional amplifiers.

STUDIO-GRADE SIGNAL PROCESSING

For easy setup and interface with your speaker system, the RD series features a 12-decibel/octave low-pass filter, with continuously variable frequency selection from 50–500 Hz and a variable bass boost EQ.

LED CLIPPING INDICATOR RINGS

An LED clipping indicator ring that surrounds each input level potentiometer lets you quickly and accurately set your amplifier’s input sensitivity, without the need for additional test equipment.

AUTOMATIC TURN-ON FEATURE

This helpful feature, selectable between signal sensing and DC offset sensing modes, comes standard on all RD series amps.

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.

Engineering enhancements are ongoing and may not be reflected in the pictures, videos and specifications.

Channels Monoblock
Physical dimensions (Height)2.13" (54 mm)
Physical dimensions (Width)Monoblock (500 W): 9.78" (248 mm) 
Physical dimensions (Depth)6.96" (177 mm)
Warranty 2 years

Audio

Amplifier class Class D
Rated continuous (RMS) power (14.4 V input @ 4 Ohm < 1% THD)Monoblock (500 W): 250 W x 1
Rated continuous (RMS) power (14.4 V input @ 2 Ohm < 1% THD)Monoblock (500 W): 500 W x 1
Rated continuous (RMS) power (12.5 V input @ 4 Ohm < 1% THD)Monoblock (500 W): 225 W x 1
Rated continuous (RMS) power (12.5 V input @ 2 Ohm < 1% THD)Monoblock (500 W): 400 W x 1
Signal-to-Noise Ratio, referred to highest rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs Monoblock (500 W): >80 dB 
Signal-to-Noise Ratio, referred to 1 W (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs Monoblock (500 W): >60 dB Monoblock (1000 W / 1500 W): >50 dB
Damping factor @ 4 Ω Monoblock (500 W): >1000/50 Hz
Damping factor @ 2 Ω >500/50 Hz
THD+N @ Rated Power<1% @ 2 Ω
Frequency response (+0, -1dB)7 Hz-500 Hz
Input voltage range @ RCA inputs Switchable from 200 mV-2 V RMS (Low) to 800 mV-8 V RMS (High)
Fuse rating Monoblock (500 W): 50 A
Recommended fuse type(s)Monoblock (500 W): AFS, AGU or MaxiFuse™
Min. copper power/Ground wire gauge4 AWG wire 
Signal Processing

Filter mode(s): Channels 1 & 2 Low-pass only
Filter Slope(s): Channels 1 & 212 dB/octave
Filter frequency range: Channels 1 & 250 Hz-500 Hz
Bass boost
Bass boost EQ (0 to +12 dB @ 45 Hz)
Remote level control Optional (RBC-1)
Pass-through preamp output Buffered

Note: Some JL Audio Products are not held in stock in New Zealand, but are In our Australia warehouse. Please allow additional time for shipping from our Australia warehouse to New Zealand. Buyer will be notified if not in new zealand stock..