All orders are shipped from the UK. All orders placed before 12:00pm Monday to Thursday will be processed the same day.
Orders placed after 12:00pm Friday and before 12:00pm Sunday will be processed on Monday. Process time can vary depending on location of stock.
If a product is "Out Of Stock", you can still purchase on back order but there will be an average 3-4 week lead time to receive it
*All times stated are relevant to London Time*
Product Details
The JL Audio HD750/1 is a compact, high-output monoblock Class D amplifier designed to deliver 750 W RMS with exceptional consistency across a wide range of subwoofer loads. Thanks to JL Audio’s R.I.P.S. (Regulated, Intelligent Power Supply) and Single-Cycle Control switching design, it maintains rated power from 1.5 to 4 ohms (12.5–14.4 V), making it an ideal choice for performance-focused marine and powersports systems when installed in a clean, dry, well-ventilated location.
- Rated power: 750 W x 1 RMS @ 1.5Ω / 2Ω / 3Ω / 4Ω (regulated)
- Amplifier type: Monoblock Class D, wide-range
- Frequency response: 6 Hz – 8 kHz (+0, -1 dB)
- THD+N: <0.03% @ 4Ω (at rated power)
- Signal-to-noise ratio: >110 dB (referred to highest rated power, A-weighted)
- Inputs: Differential-balanced RCA inputs; switchable input range (Low: 200 mV–2 V / High: 800 mV–8 V)
- Signal processing: Fully variable crossover filtering (HP/LP selectable, 12 or 24 dB/oct options) plus defeatable infrasonic filtering
- Connections: Removable power & speaker plugs; accepts up to 4 AWG power/ground
- Protection: Thermal/overload/short protection with advanced rollback behavior
- Fuse requirement: 60 A (AFS/AGU/MaxiFuse)
- Dimensions (H x W x D): 1.93 in (49 mm) x 10.74 in (273 mm) x 8.29 in (211 mm)
- Optional accessories: HD-RLC remote level control; HD stacking kit (sold separately)
OEM / model reference: HD750/1
TMP Global SKU: JLMHD750/1
Before ordering: Confirm your subwoofer wiring impedance (minimum 1.5Ω), amplifier ratings, mounting location, and fitment. Incorrect impedance or poor installation can damage audio components.
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