JL Audio Monoblock Class D Wide-Range Amplifier, 1200 W HD1200/1

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Monoblock Class D Wide-Range Amplifier, 1200 W x 1 @ 1.5-4 Ω

Our most powerful amplifier ever employs our advanced Single-Cycle Control switching design and R.I.P.S. technology to deliver 1200 W of clean power into any impedance between 1.5 and 4 Ω, giving you the highest degree of flexibility in designing your subwoofer system. Tight power supply regulation keeps distortion down and maximizes your bass quality. 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.
While targeted primarily to subwoofer applications, the HD1200/1 is a wide-range amplifier and can also be used to drive high-performance mid-range speaker systems.
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 Ω1200 W RMS x 1
@ 3 Ω 1200 W RMS x 1
@ 2 Ω1200 W RMS x 1
@ 1.5 Ω1200 W RMS x 1
Power / Ratings
@ 4 Ω1200 W RMS x 1
@ 3 Ω1200 W RMS x 1
@ 2 Ω1200 W RMS x 1
@ 1.5 Ω1200 W RMS x 1
Frequency Response6 Hz - 8 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power >110 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W (Main Channels) >79 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω>500 / 50 Hz
Damping Factor @ 2 Ω >250 / 50 Hz
THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω
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 2 AWG wire
Fuse Rating100 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. Potentiometer Yes
Filter Defeat FunctionYes
Infrasonic Filter30 Hz, defeatable
Bass Boost EQNo
Output Polarity SwitchYes
Remote Subwoofer Level Control Optional (HD-RLC)
Remote Bass EQ Boost ControlNo
Pass-Through Preamp Output Buffered

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