Marine amplifier MHD750/1
In stock
Technical specifications
Technical specifications
| Amp Class | Classe D |
| Speaker Channels | 1 |
| Audio Output Power Rms | 750 |
| Puissance totale de sortie (W) | 750 |
| Impedance | 1.5-4 |
| Max power consumption | 870 W |
| Product dimensions | 273 x 178 x 51 mm |
| Weight | 3.69 |
| Subwoofer Output | Oui |
| Color | Gris |
| Cooling method | Passif (coque externe) |
| Filter Slope | 12/24 |
| Type de mise à la terre | Négative |
| Infrasonic Filter | Oui |
| Input Sensitivity Control | Oui |
| Installation Clearance Top | 2.5 |
| Mounting orientation | À plat (vers le haut) |
| Operating voltage | 12 |
| IP rating | Non étanche |
| Wired input | RCA (Audio/Vidéo) |
| Wired output | RCA (Audio/Vidéo) |
Detailed description
Detailed description
The JL Audio MHD750/1 marine amplifier is a single-block Class D model designed for marine audio systems. It delivers 750 watts RMS with an extended frequency response from 6 Hz to 8 kHz, making it suitable for subwoofers and mid-bass or mid-tweeter speaker systems.
Advanced Audio Technologies
This amplifier integrates JL Audio’s patented Single Cycle Control™ Class D technology, which corrects the audio signal more than 400,000 times per second for precise amplification and minimal distortion. The R.I.P.S. (Regulated, Intelligent Power Supply) power supply optimizes output power, delivering a constant 750W RMS across impedances from 1.5 to 4 ohms. This design also ensures stable power output across a voltage range of 11 to 14.5 volts, contributing to improved audio fidelity.
Robust Marine Design
The MHD750/1 is built to withstand marine environments. It features white and gray epoxy powder finishes, a sealed control cover, stainless steel hardware, and a corrosion-resistant aluminum chassis. The circuit boards are coated with a conformal coating for enhanced protection against saltwater, spray, and UV exposure. Its RealSink™ thermal management system uses vertically cast alloy heat sink fins for efficient fanless cooling, allowing compact stacking of amplifiers.
Integration and Installation
With compact dimensions (49 mm H x 273 mm L x 199 mm D) and a weight of 3.69 kg, the MHD750/1 offers flexible installation options. It includes balanced differential inputs to minimize noise and a flexible crossover section with high-pass or low-pass filter modes (50–500 Hz, 12 or 24 dB/octave) and a switchable 30 Hz infrasonic filter (24 dB/octave). The preamp outputs allow signal cascading to additional amplifiers. The power and speaker terminals are removable for easier installation. A 60A fuse is recommended for protection, with minimum 4 AWG copper power/ground wiring.
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