JL Audio

JL Audio HD600/4 HD Series 4-Channel Amplifier — 150W RMS x 4

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

$1,425.00

$1,899.99

25% Off

SKU: HD600/4

UPC: 699440982214

Condition: New

Availability: Usually Ships in 1-2 Days

Shipping: Calculated at Checkout

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Description
Warranty
Shipping & Returns

Descriptions

About: JL Audio HD600/4 HD Series 4-Channel Amplifier — 150W RMS x 4

This compact multi-channel powerhouse employs our Single-Cycle Control switching design and R.I.P.S. technology to deliver 150 W x 4 or 300 W x 2. Tight power supply regulation keeps distortion down and maximizes sound quality.

When using the HD750/1 or HD1200/1 to drive a subwoofer system, the HD600/4 is the ideal satellite amplifier, delivering huge dynamics with pristine resolution. From a pure sound quality perspective, we invite you to compare the real-world, in-car performance of this amplifier to any other amplifier on the market, of any type, at any price.

It can also be deployed on its own as a very capable 3-channel system amplifier with 150 W x 2 to the satellites and 300 W x 1 to a subwoofer system. This amplifier features a brushed aluminum finish with black powder-coated cast alloy heat sinks and bottom panel. A black powder-coated, gasketed cover is also provided to protect the controls.

Features:

4-channel amplifier
150 watts RMS x 4 (rated power from 1.5 to 4 ohms)
300 watts RMS x 2 bridged (rated power from 3 to 8 ohms)
Variable high- and low-pass filter (50-500 Hz 12 or 24dB/octave)
Subsonic filter and output polarity control
Removable power and speaker plugs
Optional wired remote for level control
Optional HD stacking kit for stacking multiple HD amps together
Class D amplifier design
MOSFET power and output stages
Differential-balanced inputs eliminate noise from your vehicle's electrical system
Speaker- and preamp-level inputs (speaker-level input requires an optional adapter)
Preamp outputs
Dimensions (W x H x D): 10.74" x 1.93" x 7.85" (273 x 49 x 199 mm)
Weight: 6.6 lb (2.99 kg)

Specifications:

Rated Continuous (RMS) Power @ 14.4 V:

@ 4 Ω 150 W RMS x 4
@ 3 Ω 150 W RMS x 4
@ 2 Ω 150 W RMS x 4
@ 1.5 Ω 150 W RMS x 4
Bridged @ 8 Ω 300 W RMS x 2
Bridged @ 4 Ω 300 W RMS x 2

Rated Continuous (RMS) Power @ 12.5 V:

@ 4 Ω 150 W RMS x 4
@ 3 Ω 150 W RMS x 4
@ 2 Ω 150 W RMS x 4
@ 1.5 Ω 150 W RMS x 4
Bridged @ 8 Ω 300 W RMS x 2
Bridged @ 4 Ω 300 W RMS x 2

Frequency Response: 6 Hz - 30 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power: >110 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W: >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω: >300 / 50 Hz
Damping Factor @ 2 Ω: >150 / 50 Hz
THD+N @ Rated Power: <0.03% @ 4 Ω per Ch.
Input Voltage Range @ RCA Inputs: Switchable from 200 mV - 2 V RMS to 800 mV - 8 V RMS
Min.Copper Power / Ground Wire Gauge: 4 AWG wire
Fuse Rating: 50 A (AFS, AGU or MaxiFuse™)

Signal Processing:

Filter Mode(s): Low-Pass or High-Pass
Filter Slope(s): 12/24 dB/octave
Filter Frequency Range: 50 Hz - 500 Hz
Detented, Calibrated Filter Freq. Potentiometers: Yes
Filter Defeat Function: Yes
Remote Level Control: Optional (HD-RLC)
Remote Level Modes: 2 or All Channels
Channel Input Mode Switch: Yes (2/4 ch.)
Pass-Through Preamp Output: Buffered
Source Channel Selection for PreOuts: Yes

What's in the Box:

Four-channel class-D full-range amplifier
Power/Ground/Turn-On plug
2 Speaker connection plugs
4 Mounting brackets
2mm Allen-wrench
2.5mm Allen-wrench
3mm Allen-wrench
3.5mm Allen-wrench
4mm Allen-wrench
5mm Allen-wrench
4 Mounting bolts
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.