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M700/5

5-Channel Class D Marine System Amplifier, 75 W x 4 @ 4 Ω + 300 W x 1 @ 2 Ω - 14.4V

M700/5 Product Spotlight The M700/5 is ideal for plete audiophile-grade, subwoofer + four satellite system, and it fortably in just about any boat's partments. With this incredible little amplifier, you can drive two pairs of ponent speaker systems with plenty of clean power (75 W x 4 @ 4 Ω), while also delivering a stout 300 W of power to a subwoofer system. The breakthrough that makes this much power possible in such a small chassis is our NexD™ switching design. The M700/5 includes a 12 dB / octave high-pass filter for one main channel pair, a 12 dB octave high-pass or bandpass filter for the other main channel pair, plus a variable slope low-pass filter for its subwoofer channel. All three filters offer continuously variable cutoff frequency selection from 50-500 Hz. This amplifier's filters can also be configured as a true 3-way crossover, with a low-pass filter for the subwoofer channel, a bandpass filter on Ch. 3 & 4, and a high-pass filter on Ch. 1 & 2. An "x10" multiplier switch on the Ch. 1 & 2 high-pass filter allows its cutoff frequency to be adjusted from 50-500 Hz or 500-5000 Hz. With the addition of an HD-RLC remote level control (sold separately), the amplifier's subwoofer channel level or overall level can be directly controlled from a remote location. This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment.

Rated Continuous (RMS) Power @ 14.4 V Main Channels @ 4 Ω 75 W RMS x 4 Main Channels @ 2 Ω 100 W RMS x 4 Main Channels - Bridged @ 4Ω 200 W RMS x 2 Subwoofer Channel @ 4 Ω 180 W RMS x 1 Subwoofer Channel @ 3 Ω 240 W RMS x 1 Subwoofer Channel @ 2 Ω 300 W RMS x 1 Subwoofer Channel @ 1.5 Ω N/A Rated Continuous (RMS) Power @ 12.5 V Main Channels @ 4 Ω 60 W RMS x 4 Main Channels @ 2 Ω 90 W RMS x 4 Main Channels - Bridged @ 4Ω 180 W RMS x 2 Subwoofer Channel @ 4 Ω 180 W RMS x 1 Subwoofer Channel @ 3 Ω 240 W RMS x 1 Subwoofer Channel @ 2 Ω 300 W RMS x 1 Subwoofer Channel @ 1.5 Ω N/A General Specifications Frequency Response (Main Channels) 12 Hz - 22 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 10 Hz - 1 kHz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >150 / 50 Hz Damping Factor @ 2 Ω >75 / 50 Hz THD+N @ Rated Power (Main Channels) <1% @ 2 Ω per Ch. THD+N @ Rated Power (Subwoofer Channels) <1% @ 2 Ω per Ch. Input Voltage Range @ RCA Inputs 100 mV - 4 V RMS Min.Copper Power / Ground Wire Gauge 4 AWG wire Fuse Rating 60 A (AFS, AGU or MaxiFuse™) Signal Processing Filter Mode(s): Channels 1 & 2 (front) High-Pass only Filter Slope(s): Channels 1 & 2 (front) 12 dB/octave Filter Frequency Range: Channels 1 & 2 (front) 50 Hz - 5 kHz Filter Mode(s): Channels 3 & 4 (rear) High-Pass or Bandpass Filter Slope(s): Channels 3 & 4 (rear) 12 dB/octave Filter Frequency Range: Channels 3 & 4 50 Hz - 500 Hz Filter Mode(s): Subwoofer Channel Low-Pass only Filter Slope(s): Subwoofer Channel 12/24 dB/octave Filter Frequency Range: Subwoofer Channel 50 Hz - 500 Hz Detented, Calibrated Filter Freq. Potentiometers Yes Filter Defeat Function Yes Infrasonic Filter: Subwoofer Channel none Remote Level Control Optional (HD-RLC) Remote Level Modes Sub Ch. or All Channels Channel Input Mode Switch Yes (2/4/6 ch.) Pass-Through Preamp Output None Source Channel Selection for PreOuts N/A

NexD™ Switching Technology NexD™ Switching Technology Summary: NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from pact amplifier designs. Detailed Information: Beginning with the original 'Slash' subwoofer amplifiers, JL Audio has been at the forefront of Class D amplifier design. Today, our flagship Single-Cycle Control™ technology sets the ultimate standard for Class D amplifier performance. The NexD™ amplifiers may be a bit plex, pact and more affordable, but they flow from the same minds that have set the trend in mobile amplifier technology for over a decade. Let's get a little nerdy... A traditional PWM switching amp design uses a fixed switching frequency and varies the pulse width based solely on the audio input signal to the pulse modulator. This basic approach assumes some ideal conditions, like a rock-steady power supply, that do not necessarily occur in a real, in-car installation. Power supply sag with signal causes distortion at all power levels with these designs, even well below clipping. The cure for this is feedback (a corrective signal sent back to the input side), but this es impractical as the audio frequency increases, making it a good solution for band-limited (subwoofer) amps, but not for full-range amplifiers. Taking the above into account when designing the NexD™ subwoofer amplifiers, we have taken the simple fixed PWM approach and enhanced it with a very high switching frequency: 240 kHz, which is about 4x higher than most Class D subwoofer amplifiers. This pushes the amplifier's bandwidth to at least 500 Hz with minimal distortion and improves efficiency, while keeping typically bulky circuity pact. Your subwoofers will reward you with tight, rock-solid bass performance.

For the full-range NexD™ amplifiers and channels we applied a variable, ultra-high speed version of the NexD™ technology (switching at well over 400 kHz). In these designs, a self-oscillating modulator with "feed-forward" sends information about the instantaneous power supply voltage to the modulator, combining this with the input signal to cancel out any distortion due to supply voltage fluctuation. This reduces distortion prior to applying feedback, simplifying the overall feedback loop design. The bottom line is simply great audio: clean, powerful and reliable.

Back to top Advanced Rollback Protection Advanced Rollback Protection Summary: JL Audio's exclusive Advanced Rollback Protection circuit monitors the amplifier's thermal condition and adjusts amplifier operation to eliminate annoying amplifier shut-down events. Detailed Information: Should a JL Audio amplifier equipped with Advanced Rollback Protection reach an unsafe operating temperature, a special circuit rolls back peak power output, without changing gain, until the amplifier cools down to a safe operating temperature. The red "Thermal" LED will light to indicate this condition has been reached. Once the amplifier cools down, the circuit restores full peak power output and the red "Thermal" indicator reverts to its normal state. The operation of Advanced Rollback Protection is inaudible in most cases, but it ensures that your music keeps on playing, even under the most demanding conditions.

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