JL Audio MHD Marine Amplifiers | Marine

JL Audio MHD Marine Amplifier

Monoblock Wide-Range Marine Amplifier (750 watts) (MHD750/1)

Part Number 010-03320-00

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Function
Specs
In The Box
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ULTRACOMPACT AND ULTRAPOWERFUL

Combining our Single Cycle Control and R.I.P.S. power supply technologies, MHD amplifiers deliver world-class, full-range fidelity and high-power output from an incredibly small package.

HIGH-FIDELITY CLASS-D DESIGN DELIVERS SUPERB SONICS

INTELLIGENTLY OPTIMIZED FOR ALL THE POWER — ALL THE TIME

FULL SUITE OF STUDIO-GRADE SIGNAL PROCESSING ON BOARD

UNIQUE DESIGN ADJUSTS OPERATION TO AVOID THERMAL EVENTS

EXCEEDS INTERNATIONAL STANDARDS FOR SALT FOG AND UV EXPOSURE

3-YEAR WARRANTY

WHAT YOU'LL LOVE

SINGLE CYCLE CONTROL

Groundbreaking technology applies output correction more than 400,000 times per second to deliver exceptional audio quality with reduced current draw and heat.

R.I.P.S. TECHNOLOGY

Regulated, Intelligent Power Supply is a tightly controlled design that maintains full power output from 1.5 to 4 ohms per channel and at any supply voltage from 11 to 14.5 volts.

STUDIO-GRADE SIGNAL PROCESSING

Selectable 12 dB/octave (Butterworth) or steep 24 dB/octave (Linkwitz-Riley) filters with calibrated potentiometer to best integrate with subwoofers and component systems.

DIFFERENTIAL-BALANCED INPUTS

A versatile design accepts speaker level signals without a line-output converter; it also delivers outstanding noise rejection while preventing alternator whine and other noises.

ADVANCED ROLLBACK PROTECTION

Innovative circuit design ensures that the amplifier will never shut down as a result of thermal overload and keeps the music playing, even under the most demanding conditions.

BUILT FOR THE ELEMENTS

An all-aluminum, powder-coated housing with marine-grade hardware inhibits corrosion, and a watertight security cover protects all controls from the harshest of seasons.

FUNCTIONAL HIGH-FIDELITY

POWERFULLY NEAT

All MHD models share the same compact dimensions, making them far easier to place.

REALSINK CHASSIS

The heat sink design requires no fans and permits stacking without losing cooling ability.

DESIGNED TO FIT

Removable power and speaker plugs aid installations in tight spaces.

General
Channels	Monoblock/4/5
Physical dimensions (Height)	1.93" (49 mm)
Physical dimensions (Width)	10.74" (273 mm)
Physical dimensions (Depth)	7.85" (199 mm)
Weight	Monoblock: 6.6 lbs (2.99 kg) 5-Channel: 6.85 lbs (3.11 kg)
Operating voltage	11-14.5 VDC (12 V Models) 22-29 VDC (24 V Models)
Warranty	3 years
Audio
Amplifier class	Class D
Rated continuous (RMS) power (14.4 V input @ 4 Ohm < 1% THD)	Monoblock: 750 W x 1 4-Channel: 150 W x 4/300 W x 2 (Bridged) 5-Channel: Main: 100 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (14.4 V input @ 2 Ohm < 1% THD)	Monoblock: 750 W x 1 4-Channel: 150 W x 4/300 W x 2 (Bridged) 5-Channel: Main: 75 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (12.5 V input @ 4 Ohm < 1% THD)	Monoblock: 750 W x 1 4-Channel: 150 W x 4/300 W x 2 (Bridged) 5-Channel: Main: 100 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (12.5 V input @ 2 Ohm < 1% THD)	Monoblock: 750 W x 1 4-Channel: 150 W x 4/300 W x 2 (Bridged) 5-Channel: Main: 75 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (28.8 V input @ 4 Ohm < 1% THD)	4-Channel (24 V): 150 W x 4/300 W x 2 (Bridged) 5-Channel (24 V): Main: 100 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (28.8 V input @ 2 Ohm < 1% THD)	4-Channel (24 V): 150 W x 4/300 W x 2 (Bridged) 5-Channel (24 V): Main: 75 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (25 V input @ 4 Ohm < 1% THD)	4-Channel (24 V): 150 W x 4/300 W x 2 (Bridged) 5-Channel (24 V): Main: 100 W x 4/Sub: 500 x 1
Rated continuous (RMS) power (25 V input @ 2 Ohm < 1% THD)	4-Channel (24 V): 150 W x 4/300 W x 2 (Bridged) 5-Channel (24 V): Main: 75 W x 4/Sub: 500 x 1
Signal-to-Noise Ratio, referred to highest rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs	Monoblock: > 110 dB below rated power 4-Channel: > 110 dB 5-Channel: > 108.5 dB below rated power
Signal-to-Noise Ratio, referred to 1 W (A-weighted, 20 Hz - 20 kHz noise bandwidth): Analog Inputs	Monoblock: > 88 dB 4/5-Channel: > 88.2 dB
Damping factor @ 4 Ω	Monoblock: > 500/50 Hz 4-Channel: > 300/50 Hz 5-Channel: > 400/50 Hz
Damping factor @ 2 Ω	Monoblock: > 250/50 Hz 4-Channel: > 150/50 Hz 5-Channel: > 200/50 Hz
THD+N @ Rated Power	Monoblock/4-Channel: < 0.03% @ 4 Ω
THD+N @ Rated Power: Main Channels	5-Channel: < 0.03% @ 4 Ω
THD+N @ Rated Power: Subwoofer Channel	5-Channel: < 0.05% @ 4 Ω
Frequency response (+0, -1dB)	Monoblock: 6 Hz-8 kHz 4-Channel: 6 Hz-30 kHz
Frequency response (+0, -1dB): Main Channels	5-Channel: 12 Hz-28 kHz
Frequency response (+0, -1dB): Subwoofer Channel	5-Channel: 12 Hz-10 kHz
Input voltage range @ RCA inputs	Switchable from 200 mV-2 V RMS (low) to 800 mV-8 V RMS (high)
Fuse rating	Monoblock/5-Channel: 60 A 4-Channel: 50 A 4-Channel (24 V): 25 A 5-Channel (24 V) 30 A
Recommended fuse type(s)	AFS, AGU or MaxiFuse™
Min. copper power/Ground wire gauge	4 AWG wire
Signal Processing
Filter mode(s): Channels 1 & 2	4-Channel: Off, Low-Pass or High-Pass 5-Channel: Off or High-Pass only
Filter Slope(s): Channels 1 & 2	4/5-Channel: 12/24 dB/octave
Filter frequency range: Channels 1 & 2	4/5-Channel: 50 Hz-500 Hz
Filter mode(s): Channels 3 & 4	4-Channel: Off, Low-Pass or High-Pass 5-Channel: Off or High-Pass only
Filter Slope(s): Channels 3 & 4	4/5-Channel: 12/24 dB/octave
Filter frequency range: Channels 3 & 4	4/5-Channel: 50 Hz-500 Hz
Filter mode(s): Subwoofer Channel	Monoblock: Off, Low-Pass or High-Pass 5-Channel: Off or Low-Pass only
Filter slope(s): Subwoofer Channel	Monoblock: 12/24 dB/octave
Filter frequency range: Subwoofer Channel	Monoblock: 50 Hz-500 Hz
Detented, calibrated filter frequent potentiometers	yes
Infrasonic filter: Subwoofer Channel	Monoblock/5-Channel: 30 Hz, defeatable
Remote level control	Optional (HD-RLC)
Remote level modes	4-Channel: 2 or All Channels 5-Channel: Sub Channel only
Channel input mode switch	4-Channel: yes (2/4 Channels) 5-Channel: yes (2/4/6 Channels)
Output polarity switch	Monoblock: yes
Pass-through preamp output	Monoblock/4-Channel: Buffered 5-Channel: Buffered
Source channel selection for PreOuts	4-Channel: yes

MHD amplifier
Power input plug
Speaker connection plug(s)
Four mounting feet
2.5 mm Allen wrench
4 mm Allen wrench
Four machine screws
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JL Audio MHD Marine Amplifier

JL Audio MHD Marine Amplifier

Monoblock Wide-Range Marine Amplifier (750 watts) (MHD750/1)

ULTRACOMPACT AND ULTRAPOWERFUL

WHAT YOU'LL LOVE

SINGLE CYCLE CONTROL

R.I.P.S. TECHNOLOGY

STUDIO-GRADE SIGNAL PROCESSING

DIFFERENTIAL-BALANCED INPUTS

ADVANCED ROLLBACK PROTECTION

BUILT FOR THE ELEMENTS

FUNCTIONAL HIGH-FIDELITY

POWERFULLY NEAT

REALSINK CHASSIS

DESIGNED TO FIT

General

Audio

Signal Processing