JL Audio JD Series 500W Monoblock Subwoofer Amplifier
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• (1) Monoblock subwoofer amplifier
• 2.5mm Hex key
• 3mm Hex key
• (1) Owner's manual
JD Series Amplifier
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.
Great Solution for Powering Subwoofers
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.
LED-clipping indicator ring
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.
NexD™ Switching Technology
For the full-range NexD™ amplifiers and channels we applied a variable, ultra-high speed version of the NexD™ technology (switching at well over 400 kHz). In these designs, a self-oscillating modulator with "feed-forward" sends information about the instantaneous power supply voltage to the modulator, combining this with the input signal to cancel out any distortion due to supply voltage fluctuation. This reduces distortion prior to applying feedback, simplifying the overall feedback loop design.
JL Audio’s Differential-Balanced Inputs are engineered to combat induced cable noise, which is a common problem in car and marine audio installations. 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.
Complete Signal Processing Package
12dB/octave low-pass filter, non-defeatable, with fully variable filter frequency selection from 50-500 Hz Adjustable 0 to +12 dB Bass Boost EQ @ 45 Hz Remote level control with optional controller (RBC-1) Preamp outputs (buffered, pass-through type)
Maximum Power : 500 Watts
Low Frequency Response : 50-500 Hz
Number of Channels : 1
Frequency Response : 7-500 Hz
Built In Crossovers : Yes
RMS Power Output : 500x1 Watts
Amplifier Class : D
Fuse Rating : 50 A
XP750-SE OFFER : Yes
Rated Continuous (RMS) Power @ 14.4 V
@ 4 ohms: 250 W RMS x 1
@ 3 ohms: 350 W RMS x 1
@ 2 ohms: 500 W RMS x 1
@ 1.5 ohms: N/A
Rated Continuous (RMS) Power @ 12.5 V
@ 4 ohms: 225 W RMS x 1
@ 3 ohms: 300 W RMS x 1
@ 2 ohms: 400 W RMS x 1
@ 1.5 ohms: N/A
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 ohms: >1000 / 50 Hz
Damping Factor @ 2 ohms: >500 / 50 Hz
THD+N @ Rated Power: <1% @ 2 ohms 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
Height (H): 2.10 in / 53 mm
Width (W): 9.50 in / 242 mm
Depth (D): 7.50 in / 190 mm
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Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 1 year from the original date of purchase with proper return authorization.
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