Mono

JD-Series Monoblock Amplifier, 500-Watt @ 2-Ohm or 250-Watt @ 4-Ohm Designed to produce a whopping 500 watts into 2 ohms (14.4V, 1% THD), the JD500/1 amplifier is a great solution for powering subwoofers in a cost-conscious system. JL Audio's proprietary NexD™ switching technology delivers large amounts of real-world power output with excellent efficiency and ultra-low distortion. The JD500/1’s controls are located on the input panel. while the power and speaker connections can be found along the opposite end of its extruded aluminum 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 line-level and speaker-level signals. 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 JD500/1 is also equipped with an onboard LED-clipping indicator ring, surrounding the input sensitivity control. This useful feature lets you set your amplifier’s input sensitivity, quickly and accurately, without special equipment. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer level from the driver’s seat. General Specifications @ 4 Ω 250 W RMS x 1 @ 3 Ω 350 W RMS x 1 @ 2 Ω 500 W RMS x 1 Frequency Response 7 Hz - 500 Hz (+0, -1dB) S/N Ratio, referred to highest rated power >80 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W >60 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >1000 / 50 Hz Damping Factor @ 2 Ω >500 / 50 Hz THD+N @ Rated Power <1% @ 2 Ω per Ch. Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge 4 AWG wire Fuse Rating 50 A (AFS, AGU or MaxiFuse™) Filter Mode(s) Low-Pass only Filter Slope(s) 12 dB/octave Filter Frequency Range 50 Hz - 500 Hz Detented, Calibrated Filter Freq. Potentiometer No Filter Defeat Function No Infrasonic Filter No Bass Boost EQ Yes Output Polarity Switch No Remote Subwoofer Level Control Optional (RBC-1) Remote Bass EQ Boost Control No Pass-Through Preamp Output Buffered JL Audio JD500/1 Manual

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RD-Series 500-Watt Monoblock Subwoofer Amplifier @ 2-Ohms 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 JL's 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. Specifications Frequency Response 7 Hz - 500 Hz (+0, -1dB) S/N Ratio, referred to highest rated power >80 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W >60 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >1000 / 50 Hz Damping Factor @ 2 Ω >500 / 50 Hz THD+N @ Rated Power <1% @ 2 Ω per Ch. Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge 4 AWG wire Fuse Rating 50 A (AFS, AGU or MaxiFuse™) @ 4 Ω 250 W RMS x 1 @ 3 Ω 350 W RMS x 1 @ 2 Ω 500 W RMS x 1 @ 1.5 Ω N/A JL Audio RD500/1 Manual

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