JL Audio HD750/1 Monoblock Class D Amplifier
JL Audio HD750/1
Monoblock Class D Amplifier
Overview
This ultra-compact monoblock amplifier employs our Single-Cycle Control switching design and R.I.P.S. technology to deliver 750 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 HD750/1 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.
Specifications
Rated Continuous (RMS) Power @ 14.4 V
- @ 4 Ω 750 W RMS x 1
- @ 3 Ω 750 W RMS x 1
- @ 2 Ω 750 W RMS x 1
- @ 1.5 Ω 750 W RMS x 1
Rated Continuous (RMS) Power @ 12.5 V
- @ 4 Ω 750 W RMS x 1
- @ 3 Ω 750 W RMS x 1
- @ 2 Ω 750 W RMS x 1
- @ 1.5 Ω 750 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) >88 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 4 AWG wire
- Fuse Rating 60 A (AFS, AGU or MaxiFuseâ„¢)
Physical Specifications
- Height (H) 1.93 in / 49 mm
- Width (W) 10.74 in / 273 mm
- Depth (D) 8.29 in / 211 mm
- Net Weight 6.6 lb / 2.99 kg
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. Potentiometer Yes
- Filter Defeat Function Yes
- Infrasonic Filter 30 Hz, defeatable
- Bass Boost EQ No
- Output Polarity Switch Yes
- Remote Subwoofer Level Control Optional (HD-RLC)
- Remote Bass EQ Boost Control No
- Pass-Through Preamp Output Buffered
