JL Audio HD750/1 HD Series 750W RMS x 1 at 1.5 to 4 Ohms, Class-D Mono Subwoofer Car Amplifier
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What's Inside?
- • Monoblock full-range class-D amplifier
- • Power/Ground/Turn-On plug
- • Speaker connection plug(s)
- • (4) mounting feet
- • 2mm Allen-wrench
- • 2.5mm Allen-wrench
- • 5mm Allen-wrench
- • (4) Mounting bolts
- • Owner's Manual
Why Choose JL Audio HD750/1 Mono Subwoofer Amplifier?
Single Cycle Control™ Switching Design
Experience high-fidelity sound with JL Audio's revolutionary Single Cycle Control™, which meticulously tracks and corrects the audio signal over 400,000 times per second to deliver pristine amplification and eliminate distortion, all while achieving outstanding efficiency that reduces current draw by 60% compared to traditional Class A/B amplifiers.
Enjoy Uninterrupted Audio with JL Audio's Advanced Rollback Protection
Enjoy unmatched versatility with our amplifier, perfect for powering both subwoofers and high-performance mid-range speaker systems, all wrapped in a sleek and durable design with a brushed aluminum finish and sturdy black powder-coated heat sinks.
R.I.P.S. Technology for Stable Power and Superior Sound Quality
Discover the power of JL Audio's R.I.P.S. (Regulated, Intelligent Power Supply) system, designed to deliver consistent power and low distortion across varying battery voltages (11V-14.5V) and load impedances (1.5 ohm to 4 ohm). Enjoy incredible dynamics and stability in your audio system, ensuring an exceptional listening experience no matter your setup.
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JL Audio HD750/1 HD Series 750W Mono Subwoofer Class-D Car Amplifier
PREMIUM POWER
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- • R.I.P.S. Power Technology
- • Single Cycle Control™ HD
- • 1.5–4 Ohm Operation
- • Advanced Thermal Management
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JL Audio RD1000/1 RD Series 1000W Mono Subwoofer Class-D Car Amplifier
HIGH OUTPUT
- • 1000W RMS at 2 Ohms
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- • High-Output Subwoofer Systems
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JL Audio JD500/1 JD Series 500W Mono Subwoofer Class-D Car Amplifier
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JL Audio XDM600/1 XDM Series 600W Mono Subwoofer Class-D Marine Amplifier
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Recommended JL Audio Subwoofers for HD750/1
BEST MATCH
JL Audio 10W7AE
750W RMS 10-inch W7AE subwoofer that closely matches the HD750/1's 750W RMS output for a powerful, premium bass system.
PREMIUM BASS
JL Audio 12W7AE
1000W RMS 12-inch W7AE delivers deep, powerful bass and can be driven effectively by the HD750/1 within its recommended power range.
HIGH OUTPUT
JL Audio 13W3v3
600W RMS 13.5-inch W3v3 provides a strong combination of cone area, deep bass, and power handling for a high-output system.
Power Matching Tip: The HD750/1 delivers 750W RMS, making the 10W7AE an especially close power match. Always set amplifier gain properly and consider the subwoofer's final wired impedance when building your system.
JL Audio HD750/1 Highlights
PREMIUM POWER
750W RMS Mono Subwoofer Power
Delivers 750W RMS of clean Class-D power for high-performance subwoofer systems and demanding car audio builds.
ADVANCED TECHNOLOGY
Single Cycle Control™ HD
Advanced Class-D technology actively corrects distortion for clean, accurate, and detailed sound reproduction.
CONSISTENT OUTPUT
R.I.P.S. Regulated Power Supply
Maintains consistent power delivery across varying vehicle voltage and speaker impedance conditions.
WIDE-RANGE PERFORMANCE
6Hz–8kHz Frequency Response
Its ultra-wide frequency response gives the HD750/1 flexibility for subwoofer or high-performance midrange applications.
COMPACT EFFICIENCY
Powerful & Efficient Class-D Design
The compact Class-D design provides impressive power efficiency while helping reduce heat and electrical system demands.
THERMAL CONTROL
RealSink™ Thermal Management
Advanced heat dissipation and rollback protection help maintain reliable amplifier performance during demanding listening sessions.
SYSTEM TUNING
Flexible Active Crossover
Fine-tune your system with adjustable crossover frequencies, selectable filter slopes, infrasonic protection, and polarity control.
Frequently Asked Questions (FAQ)
- • Why does my JL Audio HD750/1 go into protection mode after a few minutes of heavy bass?
This is commonly caused by a speaker load below the amplifier's minimum impedance, poor ventilation, or a wiring short.
- • Can the HD750/1 safely run a 2-ohm subwoofer?
Yes. The HD750/1 is designed to deliver its rated power into a wide range of impedances, including 2 ohms.
- • Why does my amplifier stay on after I turn off the vehicle?
The remote turn-on wire may be connected to a constant 12V source instead of a switched accessory circuit.
- • Why is my subwoofer quieter after upgrading to the HD750/1?
The amplifier gain may not be properly adjusted. Recalibrating the gain and input sensitivity usually restores output.
- • Can I use the HD750/1 with a factory radio?
Yes. It accepts both low-level and high-level input signals when installed correctly.
- • Why do I hear a popping sound when the amplifier turns on?
This is often caused by an incorrect remote turn-on sequence or improper grounding between system components.
- • Can I mount the HD750/1 upside down?
Yes, but adequate airflow must be maintained to ensure proper cooling during extended operation.
- • Why does the amplifier become warm even when I'm not playing music loudly?
Class D amplifiers generate normal operating heat. Excessive heat usually indicates restricted airflow or excessive current draw.
- • Does the HD750/1 require a capacitor for strong bass performance?
Not usually. A healthy battery and properly sized power wiring are more important than adding a capacitor.
- • Why does the amplifier clip before reaching full volume?
The source unit may already be clipping, or the amplifier gain may be set too high. Proper gain matching is essential.
JL Audio HD750/1 Videos & Reviews
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- Number of Channels : 1
- Frequency Response : 6-80000 Hz
- Built In Crossovers : Yes
- Amplifier Class : D
- Fuse Rating : 60 A
- Promo : Yes
Features:
- Power Output: 750 W x 1 @ 1.5-4 Ω for flexible subwoofer system design
- Advanced Technology: Utilizes Single-Cycle Control switching design and R.I.P.S. technology for clean power delivery
- Reduced Distortion: Tight power supply regulation minimizes distortion and maximizes bass quality
- Wide-Range Capability: Suitable for both subwoofer applications and high-performance mid-range speaker systems
- Durable Construction: Features a brushed aluminum finish with black powder-coated cast alloy heat sinks and bottom panel
- Control Protection: Comes with a black powder-coated, gasketed cover to shield the controls
Specifications:
- RMS Power Output (Watts x Channels): 750 x 1
- Power at 2 Ohms (Watts x Channels): 750 x 1
- Minimum Impedance Unbridged: 1.5
- Minimum Impedance: 1.5
- Best Frequency Response: 6-30k Hz
- THD at Rated RMS Power: 0.03%
- Signal to Noise Ratio: 111 dB
- Input Voltage: 14.5v
- Amplifier Class: D
- Low-Pass Crossover Frequency: 50-500 Hz
- Low-Pass Slope (dB/octave): 12/24 dB
- High-Pass Crossover Frequency: 50-500 Hz
- High-Pass Slope (dB/octave): 12/24 dB
- Fan Cooled: No
- Fuse Rating:60
- Speaker Level Inputs: Yes
- Preamp Outputs: 2
- Width (inches): 10-13/16
- Height (inches): 1-15/16
- Depth (inches): 8-13/16
- UPC: 699440982207
- Weight: 10
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
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I have the JL hd750/1 Powering my 12w7. I must say, wow!!!! I was a little skeptical about the power difference compared to the initial 500/1 setup that i had. There was a total difference from the time i powered the amp, and it has not let me down yet. Amazing amp
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Have 2 of them powering 4 12w3's and it's the loudest/cleanest hard hitting system I've ever had and over the past 23 years I've had plenty of systems
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hows off its versatility by connecting to all available interior speakers
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JL audio HD750/1 produces the same wattage at all 4 to 1.5 Ohms Has a low power draw from your alternator And stays clear at all volumes and provides alot of sound. how could you go wrong
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Bought one a month ago and paired with my 10W7. Wow! There’s really some new levels of bass that’s coming out of this setup now. Glad I decided to go for the more expensive JL Audio amp. They’re really perfect for each other
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Perfect amp to have if you want to get the best out of your W7 sub. If you do not have the the W7 sub yet, you might also want to consider getting one to get the best lows you can experience. Its expensive but you get what you pay for, and I’m getting high quality bass with what I paid for.