JL Audio MHD900/5 Marine Amplifier
In stock
Technical specifications
Technical specifications
| Amp Class | Classe D |
| Speaker Channels | 5 |
| Audio Output Power Rms | 900 W |
| Puissance totale de sortie (W) | 900 |
| Impedance | 1.5-4 ohms (non ponté), 3-8 ohms (ponté) |
| Input voltage range | 11-14.5 V |
| Max power consumption | 870 W |
| IP rating | Non spécifié (non étanche) |
| Product dimensions | 49 x 273 x 211 mm |
| Weight | 3.93 |
| Amp Bridgeable | Oui |
| Subwoofer Output | Oui, canal dédié |
| Source type | Analogique (RCA) |
| Color | Noir |
| Cooling System | Passif (par convection) |
| Country Of Manufacture | MY |
| Electrical System Type | Masse négative |
| Gtin | 00699440982269 |
| Hauteur | 49 |
| Infrasonic Filter | Oui |
| Installation environment | Sec et bien ventilé |
| Installation Safety Warnings | Vérifier avant de percer, ne pas passer de câbles à l'extérieur, protéger les câbles des arêtes vives, ne pas monter dans le compartiment moteur. |
| Minimum Clearance Above | 2.5 |
| Mounting Orientation Recommendation | Le montage de l'amplificateur à l'envers est fortement déconseillé. |
| Mounting type | Surface |
| Operating voltage | 12 |
| Serial Number Location Info | Sur le panneau inférieur de l'amplificateur et sur l'emballage. |
| Technical Support Contact | (954) 443-1100 |
| Usage Restriction Aircraft | Non |
| Warranty Conditions Note | L'utilisation avec une masse positive ou des tensions autres que 12V annule la garantie. |
| IP rating | Non étanche |
| Wired input | RCA (Audio/Vidéo) |
Detailed description
Detailed description
The JL Audio MHD900/5 marine amplifier is a five-channel audio solution designed for marine environments. It features JL Audio’s patented Single Cycle Control™ Class D technology across all channels, delivering reference-grade sound performance across the full frequency range. This amplifier stands out for its compact size and ability to deliver significant power while reducing the electrical system’s current draw on the boat.
Audio Performance and Power
The MHD900/5 delivers a total continuous RMS power of 900 watts. Its four main channels provide 100 watts RMS x 4 at 4 ohms (between 11 and 14.5 volts) or 75 watts RMS x 4 at 1.5–3 ohms. In bridged mode, these channels reach 200 watts RMS x 2 at 8 ohms or 150 watts RMS x 2 at 3–6 ohms. The dedicated subwoofer channel delivers 500 watts RMS x 1 at 1.5–4 ohms. The amplifier provides a frequency response of 12 Hz to 28,000 Hz for the main channels and 12 Hz to 10,000 Hz for the subwoofer channel, with a deviation of +0/-1 dB. The signal-to-noise ratio is 108 dBA at full power, and total harmonic distortion (THD+N) is less than 0.03% for the main channels at 4 ohms and less than 0.05% for the subwoofer channel at 4 ohms.
Advanced Technologies and Marine Durability
Equipped with JL Audio’s R.I.P.S. (Regulated, Intelligent Power Supply) power supply technology, the JL Audio MHD900/5 maintains consistent output power across a load impedance range of 1.5 to 4 ohms and voltage range of 11V to 14.5V. The RealSink™ thermal management system uses vertically cast alloy heat sink fins for efficient heat dissipation without a fan, allowing stacking of MHD amplifiers. Marine durability is ensured by white and gray powder-coated finishes, a sealed control cover, and stainless-steel hardware, providing resistance to corrosion, salt spray, and UV exposure. The amplifier also includes advanced thermal shutdown protection to prevent unexpected shutdowns.
Signal Processing and System Integration
The studio-grade signal processing of the MHD900/5 includes variable high-pass filters for the main channels (50–500 Hz, selectable slopes of 12 or 24 dB/octave) and a variable low-pass filter for the subwoofer channel (50–500 Hz, slopes of 12 or 24 dB/octave). A switchable subsonic filter at 30 Hz (24 dB/octave) is included on the subwoofer channel to protect speakers. The balanced differential inputs minimize electrical noise and accept either preamp-level or speaker-level signals. Its compact (27.3 cm L x 4.9 cm H x 21.1 cm D) and stackable design simplifies installation in tight spaces, and the power and speaker connectors are removable for easier setup.
Expert opinion
Expert opinion
« JL Audio MHD900/5 : Maîtrise sonore et intégration marine »
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