5-Channel Full-Range Amplifier:
The JL Audio M700/5 is a five-channel, class-D marine amplifier utilizing NexD ultra-high speed switching technology to deliver outstanding fidelity and
efficiency. The M700/5 can be operated with a wide variety of source units and
Marine Amplifier: The JL Audio M-series marine amplifiers
are specifically designed for marine applications. These amps are not
waterproof, however, and should not be mounted where they are likely to get wet.
Amplifier Rating: The JL Audio M700/5 Class D
marine amplifier is rated at 75 Watts RMS x 4-channels (front and rear) + 180 Watts x
1-channel (subwoofer) in
4-ohm at 20 to 20,000Hz with a signal-to-noise-ratio of 104 dB and a total
harmonic distortion of 1% while receiving 14.4 Volts.
NexD Class D Technology: NexD is a state-of-the-art switching
amplifier design that combines exceptional audio quality with excellent
efficiency and less complexity. This results in an affordable compact
amplification with exceptional audio quality and unsurpassed total efficiency.
Advanced Rollback Protection: The M-Series amplifiers employ advanced
thermal and low-impedance protection to virtually eliminate annoying amplifier
shut-down events. Should any M-Series amplifier ever overheat, its intelligent,
unregulated power supply reacts by limiting available peak voltage until the
amplifier returns to a safe temperature range. Likewise, if an impedance lower
than optimal for the amplifier is present at the outputs, the M-series amplifier will
roll back peak voltage to protect itself without shutting down.
Differential-Balanced Inputs: The JL Audio amplifier features
differential-balanced input architecture to effectively control noise and ensure
compatibility with a wide variety of source units, including many OEM
systems. Without resorting to line output converters, you can directly connect
most OEM source units to the JL Audio amplifier without creating any noise or
compatibility issues. Unlike conventional single-ended inputs, the
differential-balanced design does not connect one side of the audio signal to
chassis ground. This eliminates any voltage sensitivity between one input
terminal and ground and greatly reduces the incidence of alternator whine in a
typical 12-volt audio installation.
Note: You will need three speaker wire to RCA adaptors (136XDCLR2S,
sold separately) to connect this amplifier to your headunit via speaker-level.
Protection Circuitry With Status Indicator Lights: There is
a single multi-color LED on the top panel of the amplifier to indicate the
amplifier's operating status.
- Flashing Green: When
the LED is flashing green, the amplifier is powering up and audio output is
- Constant Green: This LED lights green to indicate that the
amplifier is turned on and operating normally.
- Constant Red: This Red LED lights to indicate that the amplifier
has exceeded its safe operating temperature, putting the amplifier into a
self-protection mode, which reduces the power output of the amplifier. The
red light will shut off and the amplifier will return to normal, full-power
operating mode if the heat sink temperature drops back to a safe level.
- Constant Amber (Yellow): The Amber (Yellow) LED light indicates that an over-current condition has occurred and is accompanied by a muting of the amplifier's output.
Over-current condition can be caused by a speaker impedance lower than the
optimum load impedance range for the amplifier or a short-circuit in the
- LED Off: The only condition that will shut down an undamaged
M700/5 completely is if battery voltage or remote turn-on voltage drops
below 10 Volts. The amplifier will turn back on when voltage climbs
back above 11 Volts.
Cooling System: The outer shell of the JL Audio amplifier is designed
to remove heat from the amplifier circuitry. For optimum cooling performance,
this outer shell should be exposed to as large a volume of air as possible.
Enclosing the amplifier in a small, poorly ventilated chamber can lead to
excessive heat build-up and degraded performance.
Control Panel Cover: The
M700/5 features a Control Panel Security Cover which protects and hides the
amplifier's controls. When installed, the cover ensures that the amplifier's
settings are not accidentally changed while creating a clean aesthetic look for
the amplifier and your installation. The control panel security cover is
pre-installed at the factory and must be temporarily removed for access the
amplifier's controls. The security cover is secured by two 2.5mm Allen-head
Simplified Gain Setting: The M Series amplifier makes
setting the gain level of the amp via the input sensitivity control very simple.
All you need is Digital AC Voltmeter (142TK12V, sold separately) and a Test CD Disc (503CD104,
sold separately) with a sine-wave test-tone recorded at 0 dB reference level in
the frequency range to be amplified for that set of channels (50 Hz for
subwoofer channels, 1 kHz for a midrange application).
Note: The M700/5 is equipped with a independent gain controls for
Channels 1/2, 3/4, and 5.
Flexible Input Section And Active Crossover Network: The JL
Audio M-series amplifier provides a flexible input section and a comprehensive
crossover network to fine tune your system effectively and accurately. The
variable filter design employed in the JL Audio M-series amplifier crossover sections
allow you to seamlessly switch slopes, easily change filter frequencies and
address what frequencies the preamp inputs will pass. The M700/5 offers the
following independent crossover adjustments for the front, rear, and subwoofer channels
along the unit's top panel, behind a removal cover plate.
- Input Mode: This switch allows operation of all 5
amplifier channels with only one pair of input signals (2ch); with
independent front and rear input signal pairs (4ch); or with discrete front,
rear, and subwoofer signal pairs (6ch).
- Filter Mode: The amplifier allows you to select either
a Full-Range or High-Pass crossover setting for channels 1/2 (front). For
channels 3/4 (rear), you can choose between a Full-Range, High-Pass, or
Band-Pass crossover setting. Either a Full-Range, a 12dB/oct. Low-Pass, or a
24dB/oct. Low-Pass crossover setting can bet chosen for the subwoofer
- Variable Frequency: For channels 1/2 (front), you can set the
high-pass crossover frequency between 50-500 Hz or 500-5000 Hz (by switching
the HP Filter Mode from x1 to x10). For channels 3/4 (rear),
you can set the band-pass or high-pass crossover frequency between 50-500Hz.
For channel 5 (subwoofer), you can set the low-pass filter frequency between
Power/Ground/Turn-On Terminals: The amplifier features
set-screw terminals for the power, ground, and remote turn-on connections:
- Power and Ground: The JL Audio amplifier's set-screw Power and Ground
connections are designed to accept 8 to 4 AWG power wire.
A 2.5mm Allen wrench is supplied for making connections.
- Remote Turn-On: The amplifier's set-screw turn-on lead
accept 18 to 8 AWG wire. The same 2.5mm Allen wrench is supplied for making
Note: The Amplifier is not equipped with a fuse. An
external 60-amp AFS, AGU, or MAXI fuse (not included) must be installed on
the power wire. If a wiring kit is used which includes a fuse with a value
other than 60-amps, the original should be replaced with a 60-amp fuse.
Speaker Output Terminals: The M700/5 amplifier's
twelve set-screw speaker terminals will accept 16 to 8 AWG speaker wire. A 2.5mm
Allen wrench is supplied for making connections.
Preamp Inputs: The amplifier features 3 pair of
differential-balanced RCA jack inputs. The amplifier features a dedicated Input
Sensitivity gain control for the front 1/2, 3/4, and 5 channels of the amplifier. These
controls are designed to match the input sensitivity of the M700/5 to the
specific signal source that is feeding it. The amplifier's input level can be
set independently for all channels between 100mV-4V.
Remote Level Control: The amplifier features a standard
telephone connector for adding an optional wired remote level control. With the
addition of the optional wired Remote Level Control (136HDRLC,
sold separately), you can control the volume of all channels or just the
subwoofer channel of the
M700/5 from the front of your vehicle. This is useful for subwoofer level
control or even as a master volume control for your system. If desired, multiple
M-series amplifiers can be controlled from a single HD-RLC controller using a simple
phone line splitter and multiple phone cables (all sold separately).
Note: All inputs and outputs are located on one
side of the amplifier to make installation of the amplifier simple and neat.