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

JL Audio HD1200/1 Monoblock Class D Wide-Range Amplifier, 1200 W x 1 @ 1.5-4 Ω

Our most powerful HD amplifier 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.

Compact, Powerful, Efficient

Combining groundbreaking JL Audio Single Cycle Control™ switching along with Regulated, Intelligent Power Supply (R.I.P.S.™) technologies, these HD monoblock amplifiers deliver world-class, full-range fidelity and ultrapowerful output from a surprisingly small package.

Big Power, Small Size

Small size, minimal heat and lots of power — Class-D amplifier design with innovative JL Audio switching technology applies output correction more than 400,000 times per second to deliver exceptional audio quality with reduced current draw and heat.

Max Power at Any Voltage Or Impedance

In both the 750- and 1200-watt HD monoblock versions, our tightly controlled Regulated, Intelligent Power Supply design maintains full power output from any impedance between 1.5 and 4 ohms per channel and at any supply voltage from 11 to 14.5 volts.

Studio-Grade Signal Processing

Selectable 12-decibel/octave (Butterworth) or steep 24-decibel/octave (Linkwitz-Riley) filters with calibrated potentiometer make it easy to extract optimum performance from your subwoofer.

Advanced Rollback Protection

A proprietary protection circuit monitors the amplifier’s thermal condition, rolling back peak output power until the amplifier cools down to a safe operating temperature.

Flexible Mounting Options

For single or multiple amplifier installations, standard mounting screws with corner caps and lateral mounting feet are provided. An optional stacking kit is also available for mounting one amplifier atop another.

Specifications

• Rated Continuous (RMS) Power @ 14.4 V
  • @ 4 Ω 1200 W RMS x 1
  • @ 3 Ω 1200 W RMS x 1
  • @ 2 Ω 1200 W RMS x 1
  • @ 1.5 Ω 1200 W RMS x 1
• Rated Continuous (RMS) Power @ 12.5 V
  • @ 4 Ω 1200 W RMS x 1
  • @ 3 Ω 1200 W RMS x 1
  • @ 2 Ω 1200 W RMS x 1
  • @ 1.5 Ω 1200 W RMS x 1

General Specifications

• Frequency Response 6 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 Rating 100 A (AFS, AGU or MaxiFuse™)

In The Box

• HD amplifier
• Power input plug
• Speaker connection plug(s)
• Four mounting feet
• 2.5 mm Allen-wrench
• 4 mm Allen-wrench
• Four machine screws
• JL Audio badge