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JL Audio 4 Ch. Class D Full-Range Amplifier, 600 WHD600/4



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4-Channel Class D Full-Range Amplifier, 150 W x 4 @ 1.5-4 Ω

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.

Rated continuous (RMS) Power @ 14.4V
@ 4 Ω150 W RMS x 4
@ 3 Ω 150 W RMS x 4
@ 2 Ω150 W RMS x 4
@ 1.5 Ω150 W RMS x 4
Bridged @ 8 Ω 300 W RMS x 2
Bridged @ 4 Ω300 W RMS x 2
Rated continuous (RMS) Power @ 12.5V
@ 4 Ω150 W RMS x 4
@ 3 Ω150 W RMS x 4
@ 2 Ω150 W RMS x 4
@ 1.5 Ω150 W RMS x 4
Bridged @ 8 Ω300 W RMS x 2
Bridged @ 4 Ω300 W RMS x 2
Frequency Response6 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 InputsSwitchable from 200 mV - 2 V RMS to 800 mV - 8 V RMS
Min.Copper Power / Ground Wire Gauge4 AWG wire
Fuse Rating50 A (AFS, AGU or MaxiFuse™)
shipping Info
Filter Mode(s) Low-Pass or High-Pass
Filter Slope(s)12/24 dB/octave
Filter Frequency Range50 Hz - 500 Hz
Detented, Calibrated Filter Freq. PotentiometersYes
Filter Defeat FunctionYes
Remote Level Control Optional (HD-RLC)
Remote Level Modes2 or All Channels
Channel Input Mode SwitchYes (2/4 ch.)
Pass-Through Preamp OutputBuffered
Source Channel Selection for PreOutsYes

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