JL Audio HD750/1 Monoblock Class D Wide-Range Amplifier, 750 W

When the HD amplifiers were introduced in 2008, they wowed the industry with their amazing technological content and impressive power density. Subsequent and continued success in the marketplace is testament to the excellence of their design. They remain unmatched in offering compact packaging, along with the flexibility and stability of our Regulated, Intelligent Power Supply (R.I.P.S.) technologies.

“Small” is not the only story here. Making a small amplifier is great, of course... but not if power and sound quality are sacrificed. Our engineering team focused on achieving world-class fidelity first, and then on making our HD amplifiers amazingly powerful, efficient and small. These efforts led to a remarkable switching amplifier technology called Single Cycle Control™, which allowed all of these goals to be achieved.

This exclusive core amplifier technology is mated to our regulated, intelligent power supply (R.I.P.S.), advanced thermal management systems and a full complement of studio-grade processing features. Behind every HD's removable security cover, you will find studio-grade signal processing with fully variable crossover filters. Also included are our noise-killing, highly flexible differential-balanced inputs with remote level control capabilities via the HD-RLC remote level control (optional).

Monoblock Class D Wide-Range Amplifier, 750 W x 1 @ 1.5-4 Ω

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.

TECHNICAL DATA:

RMS Power @ 14.4V750W x 1 @ 4Ω. 750W x 1 @ 3Ω. 750W x 1 @ 2Ω. 750W x 1 @ 1.5Ω
Output Channels 1
Voltage 12V
Class D
Features Advanced Rollback Protection
Differential Balanced Inputs
R.I.P.S
Real Sink
Single Cycle Control
Fuse Rating 60A
Cable Gauge 4AWG
Amp Turn-On 12V
Frequency Response 6-8kHz
Signal-to-Noise Ratio 110B
Filter High-Pass / Low-Pass
Controller HD-RLC (Sold Separetely)
Input Channels 2
Input Type High Level / Low Level
Input Sensitivity Low Level 200mV-2V
Input Sensitivity High Level 800mV-8V
Height 4.9cm
Width 27.3cm
Depth 21.1cm