JL Audio JD500/1D Class D Mono Amplifier (RMS: 250W @ 4Ω 500W @ 2Ω)

Monoblock Class D Subwoofer Amplifier, 500 W x 1 @ 2 Ω / 250 W x 1 @ 4 Ω - 14.4V

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. Our 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.

Specifications:

• Rated Continuous (RMS) Power @ 14.4 V: @ 4Ω 250W RMS*1, @ 3Ω 350W RMS*1, @ 2Ω 500W RMS*1
• Rated Continuous (RMS) Power @ 12.5 V: @ 4Ω 225W RMS*1, @ 3Ω 300W RMS*1, @ 2Ω 400W RMS*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: 4-8 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
• Bass Boost EQ: Yes
• Remote Subwoofer Level Control:    Optional (RBC-1)
• Pass-Through Preamp Output: Buffered
• Dimensions (w*d*h): 9.50*7.50*2.10 inches
• Weight: 2.5kgs

What's in the BOX

• 1* Amplifier
• 1* 2.5mm Hex key
• 1* 3mm Hex key
• 1* Owner's manual &
• 1* Warranty Card