Description
JL Audio JLA-010-03319-00 MHD Marine Amplifier - 4 Channel Full-Range Marine Amplifier (600W)
Premium 4-channel Class D marine amplifier engineered for exceptional performance in demanding marine environments, delivering 600W total power with advanced signal processing and marine-grade construction for complete system flexibility.
Product Overview
The JL Audio MHD 4-Channel Marine Amplifier delivers exceptional performance and versatility in a compact, marine-grade package designed specifically for the harsh conditions of marine audio installations. With 150 watts RMS per channel at 4 ohms or 300 watts RMS per channel in bridged mode, this Class D amplifier provides clean, efficient power for complete marine audio systems including tower speakers, in-boat speakers, and subwoofers. The MHD series features advanced signal processing with adjustable crossovers, selectable filter slopes, and flexible input configuration, allowing precise system tuning for optimal performance. Marine-grade construction with conformal-coated circuit boards, stainless steel hardware, and sealed connections ensures reliable operation even when exposed to water spray and salt air. The compact dimensions and efficient Class D design minimize installation space requirements while reducing heat generation, making it ideal for space-constrained marine installations. Compatible with both 12V and 24V systems, the MHD amplifier provides professional-grade performance backed by JL Audio's legendary build quality and 3-year warranty.
Features & Benefits
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Flexible 4-Channel Configuration: 150W x 4 @ 4Ω for full-range speakers or 300W x 2 bridged for high-power applications
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Class D Efficiency: Advanced Class D topology delivers high power output with minimal heat generation and reduced power draw
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Marine-Grade Construction: Conformal-coated circuit boards and sealed connections resist moisture, salt spray, and corrosion
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Advanced Signal Processing: Independent crossover controls with selectable high-pass/low-pass filters and 12dB/24dB slopes
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Detented Filter Controls: Precision calibrated potentiometers with detents provide accurate, repeatable crossover settings
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Flexible Input Configuration: Switchable 2-channel or 4-channel input mode accommodates various source configurations
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Variable Input Sensitivity: Switchable from 200mV-2V RMS (low) to 800mV-8V RMS (high) matches any source unit
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Bridgeable Channels: Bridge channel pairs for high-power subwoofer or speaker applications
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Pass-Through Outputs: Buffered preamp outputs allow daisy-chaining additional amplifiers
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Source Channel Selection: Select which input channels feed the pass-through outputs for system flexibility
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Compact Footprint: Space-efficient design fits in tight installation locations
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Stainless Steel Hardware: All mounting hardware resists corrosion in marine environments
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Comprehensive Protection: Built-in short circuit, thermal, and DC offset protection ensures long-term reliability
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Optional Remote Control: Compatible with HD-RLC remote level control (sold separately)
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Dual Voltage Compatible: Works with both 12V and 24V marine electrical systems
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3-Year Warranty: Extended coverage provides confidence in long-term reliability
Technical Specs
| Specification |
Details |
| Model |
JLA-010-03319-00 |
| Channels |
4-channel |
| Amplifier Class |
Class D |
| Power Output @ 4Ω |
150W RMS x 4 channels |
| Power Output @ 2Ω |
150W RMS x 4 channels |
| Bridged Power @ 4Ω |
300W RMS x 2 channels |
| Total Power Output |
600W RMS |
| Operating Voltage |
11-14.5 VDC (12V models) / 22-29 VDC (24V models) |
| Signal-to-Noise Ratio |
>110 dB below rated power |
| THD+N @ Rated Power |
<0.03% @ 4Ω |
| Damping Factor @ 4Ω |
>300 at 50Hz |
| Damping Factor @ 2Ω |
>150 at 50Hz |
| Frequency Response |
6 Hz - 30 kHz (+0, -1dB) |
| Input Voltage Range |
200mV-2V RMS (low) / 800mV-8V RMS (high), switchable |
| Filter Modes (Ch 1-4) |
Off, Low-Pass, or High-Pass |
| Filter Slopes |
12dB/octave or 24dB/octave, selectable |
| Filter Frequency Range |
50 Hz - 500 Hz |
| Pass-Through Outputs |
Buffered preamp outputs |
| Input Mode Switch |
2-channel or 4-channel, selectable |
| Remote Level Control |
Optional HD-RLC compatible (2 or all channels) |
| Fuse Rating |
50A (12V) / 25A (24V) |
| Recommended Fuse Type |
AFS, AGU, or MaxiFuse |
| Min. Power Wire Gauge |
4 AWG copper |
| Physical Dimensions |
273mm W x 199mm D x 49mm H (10.74" x 7.85" x 1.93") |
| Weight |
2.8 kg (6.2 lbs) approximately |
| Warranty |
3 years |
Compatible With / Goes Well With
Compatible Speakers:
- JL Audio M3 Enclosed Tower Speakers (full-range power)
- JL Audio M3 Marine Speakers (in-boat audio)
- JL Audio M6 Enclosed Tower Speakers (premium tower audio)
- JL Audio M6 Marine Speakers (high-performance in-boat audio)
Compatible Subwoofers (Bridged Mode):
- JL Audio M3 Marine Subwoofers (300W bridged per sub)
- JL Audio M6 Marine Subwoofers (requires additional amplifier for full power)
- JL Audio M6 Marine Thin-Line Subwoofers (ideal match in bridged mode)
- JL Audio M7 Marine Subwoofers (requires dedicated monoblock for full power)
- JL Audio VeX Enclosed Systems (powered subwoofer solutions)
Compatible Source Units:
- JL Audio MediaMaster 105 Stereo (premium source integration)
- JL Audio MediaMaster 55 Stereo (compact source solution)
- JL Audio Receivers (seamless system integration)
Installation Accessories:
- HD-RLC Remote Level Control (optional, for convenient volume adjustment)
- 4 AWG power and ground wire (marine-grade copper)
- AFS, AGU, or MaxiFuse 50A fuses
- Marine-grade speaker wire (14AWG or 12AWG recommended)
- Power distribution blocks (for multiple amplifier installations)
- RCA cables (marine-grade for signal connections)
Frequently Asked Questions
Q: Can I use this amplifier to power both speakers and a subwoofer?
A: Yes, the MHD 4-channel is ideal for complete system installations. Run channels 1-2 to front speakers and bridge channels 3-4 for a subwoofer (300W RMS), or run all four channels to speakers and add a separate monoblock for subwoofer duties. The flexible crossover controls allow precise tuning for each application.
Q: What's the difference between 2-channel and 4-channel input mode?
A: 2-channel input mode uses channels 1-2 inputs to feed all four output channels (1 mirrors 3, 2 mirrors 4), ideal for 2-channel source units. 4-channel mode uses independent inputs for each channel pair, allowing front/rear fading from 4-channel source units or processors.
Q: How much current does this amplifier draw from my boat's electrical system?
A: At full rated output, the MHD 4-channel draws approximately 60-70 amps from a 12V system. The efficient Class D design reduces current draw compared to older Class AB amplifiers. Ensure your boat's alternator and battery system can support this load, especially when running multiple amplifiers.
Q: Can I mount this amplifier in an exposed location?
A: While the MHD features marine-grade construction with conformal coating, it's not fully waterproof. Mount in a protected location away from direct water spray, such as under seats, in storage compartments, or inside an amplifier enclosure. Avoid bilge areas or locations that may be submerged.
Q: What speaker impedance should I use for best performance?
A: The MHD 4-channel delivers 150W RMS per channel at both 2-ohm and 4-ohm loads. Use 4-ohm speakers for most installations as they're easier on the amplifier and electrical system. When bridging, present a 4-ohm load to the bridged channel pair (using two 8-ohm speakers in parallel or one 4-ohm speaker).
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