top of page

Note from Crutchfield: We've confirmed that the HD750/1 amps currently in stock are not part of this recall from JL Audio. If you bought an HD750/1 amp after July 2008, please check with JL Audio to see if your amp needs to be sent back for repair.

Small amps, big power

JL Audio's HD Series amplifiers offer high performance from an ultra-compact chassis. These Class D amplifiers use less power, take up less space, and generate less heat than traditional amp designs — you can even stack them up to create a sweet-looking installation.

JL Audio technology goes to work for you

HD Series amplifiers reproduce your music with exceptional accuracy, so you'll hear high-fidelity sound even under the most demanding conditions. JL Audio uses Single Cycle Control™ technology to eliminate the excessive signal distortion that's plagued Class D amplifiers in the past. Differential-balanced inputs eliminate noise before it hits the preamp stage, and allow you to connect the amp to just about any in-dash stereo. You'll hear clear, true, studio-quality audio, exactly what you expect from JL Audio.

Reliable power for your subs

The HD750/1 class D mono amplifier pushes 750 watts RMS to your sub, from a 2" tall chassis that's about the size of a sheet of computer paper. The regulated power supply allows this amp to deliver its rated power to a wide range of impedances (1.5 to 4 ohms), even when voltage levels drop during heavy use. Removable power and speaker plugs make it easy to pop this amp out if you need the space in your cargo area.

JL Audio HD Series HD750/1

    • mono subwoofer amplifer
    • 750 watts RMS x 1 (rated power from 1.5 to 4 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
    • 4-gauge power and ground leads and a 80-amp fuse recommended — wiring and hardware not included with amplifier
    • no onboard fuses — when installing multiple amps in a system, an additional 60-amp in-line fuse between the distribution block and the amplifier is recommended
    • 10-13/16"W x 1-15/16"H x 8-13/16"D
  • JL Audio HD Series HD750/1 owner's manual

    • Monoblock full-range class-D amplifier
    • Power/Ground/Turn-On plug
    • Speaker connection plug
    • 4 Mounting brackets
    • 2mm Allen-wrench
    • 2.5mm Allen-wrench
    • 5mm Allen-wrench
    • 4 Mounting bolts
    • Owner's Manual
bottom of page