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JL Audio JD400/4 JD Series 4-Channel Car Amplifier — 75W RMS x 4

JL Audio

JL Audio JD400/4 JD Series 4-Channel Car Amplifier — 75W RMS x 4

Name: Singh Electronics
Address: 7003 Steeles Avenue West, Toronto, ON, M9W 0A2, CA
Telephone: +1 (416) 745-1021
Price range: $

$428.00

$499.99

14% Off

SKU: JD400/4

UPC: 699440983617

Condition: New

Availability: Usually Ships in 1-2 Days

Shipping: Calculated at Checkout

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Descriptions

About: JL Audio JD400/4 JD Series 4-Channel Car Amplifier — 75W RMS x 4

Utilizing our exclusive NexD™ high-speed switching technologies, the JD400/4 amplifier is engineered to deliver loads of clean power, with excellent efficiency and low distortion. This little guy churns out 100 watts of audio from each of its four channels into 2 ohms (14.4V, 1% THD) and is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a whopping 200W x 2 into 4 ohms.

The JD400/4’s controls can be found on the input panel of the amplifier, with all speaker and power connections located along the opposite end of the extruded aluminum chassis. Signal processing features include high or low-pass 12 dB / octave filters (defeatable) for each channel pair, with continuously variable frequency selection from 50-500 Hz, and dual-range, differential-balanced inputs capable of accepting line-level or speaker-level signals. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard equipment.

Onboard LED-clipping indicators are also included surrounding each input sensitivity control. This convenient feature lets you set your amplifier’s input sensitivity, quickly and accurately, without special equipment. You will also find a set of buffered, pass-through preamp outputs on-board, so you can pass signals to another amplifier.

Features:

4-channel car amplifier
- 75 watts RMS x 4 at 4 ohms
- 100 watts RMS x 4 at 2 ohms
- 200 watts RMS x 2 bridged at 4 ohms (4-ohm stable when bridged)
Full-range Class D amp design with NexD™ switching technology
Frequency response: 12-22,000 Hz
Variable low- and high-pass filter (50-500 Hz, 12 dB/octave)
Preamp inputs and outputs
- Differential-balanced inputs prevent noise
Speaker-level input via speaker wire-to-RCA adapters
- Signal-sensing turn-on with speaker-level inputs
Dimensions (W x H x D): 9.50" x 2.10" x 7.50" (242 x 53 x180 mm)

Specifications:

Rated Continuous (RMS) Power @ 14.4 V:

@ 4 Ω 75 W RMS x 4
@ 2 Ω 100 W RMS x 4
Bridged @ 4Ω 200 W RMS x 2

Rated Continuous (RMS) Power @ 12.5 V:

@ 4 Ω 60 W RMS x 4
@ 2 Ω 90 W RMS x 4
Bridged @ 4Ω 180 W RMS x 2

Frequency Response: 12 Hz - 22 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power: >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W: >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω: >150 / 50 Hz
Damping Factor @ 2 Ω: >75 / 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: 40 A (AFS, AGU or MaxiFuse™)

Signal Processing:

Filter Mode(s): Low-Pass or High-Pass
Filter Slope(s): 12 dB/octave
Filter Frequency Range: 50 Hz - 500 Hz
Detented, Calibrated Filter Freq. Potentiometers: No
Filter Defeat Function: Yes
Remote Level Control: No
Remote Level Modes: N/A
Channel Input Mode Switch: Yes (2/4 ch.)
Pass-Through Preamp Output: Buffered
Source Channel Selection for PreOuts: No (always 2 Ch)

What's in the Box:

4-Channel amplifier
2.5mm Hex key
3mm Hex key
Owner's manual

Most products include a limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use. Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside manufacturer specifications. For complete warranty terms, exclusions, and claim procedures, please visit our full Warranty Policy page.

Fast shipping across Canada from our Toronto warehouse. Most orders ship within 1–2 business days. Shipping costs and delivery estimates are calculated at checkout. Returns are accepted on eligible items that are unused and in original packaging within our return period. For full details, please view our Shipping Policy and Returns & Exchanges Policy.

Please note that final sale, clearance, open-box, and refurbished items are not eligible for returns or refunds. These items may only be covered under their respective warranty or exchange terms where applicable. For full details regarding open-box items, please review our Open Box Policy.