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JL Audio Marine Four-Channel Power Amplifier - M4300

Abt Model: M4300 UPC: 699440980746

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JL Audio Marine Four-Channel Power Amplifier, Model M4300

Key Features:

Patented Absolute Symmetry™ A/B Circuitry
(U.S. Patent #6,294,959)
The full-range models employ this patented technology which reduces distortion and improves power symmetry
Patented Class D Circuitry
(U.S. Patent #6,441,685)
The subwoofer amplifiers feature a patented Class D circuit for outstanding efficiency, stability and fidelity
Active Crossover Features
Fully variable 12dB/octave filters with detented filter frequency selection controls offer excellent tuning flexibility
Preamp Outputs
Pass-through pre-amp outputs permit interconnection of multiple amplifiers (except M6450)
Bass Control Features
Bass boost circuits are included on all models and can be operated with or without a remote bass controller
Differential-Balanced Inputs
Greatly reduce noise and provide compatibility with a wide range of source units
Advanced Rollback Protection
Borrowing a page from the “Slash” amplifiers’ bag of tricks, the M-Series amplifiers employ advanced thermal and low-impedance protection to virtually eliminate annoying amplifier shut-down events

Features:

Description	Class A/B Four-Channel System Amplifier
Patented Technology	Absolute Symmetry™ Class A/B Circuit (U.S. Patent #6,294,959)
Differential-Balanced Input Topology	For superior noise immunity, RCA jack inputs
On-board Crossover	State-variable, 12dB / octave Butterworth with continuously variable cutoff frequency selection from 50 – 200 Hz. Configurable as Low-Pass or High-Pass
Preamp Output	Pass-through type
Bass EQ	+6 dB fixed frequency, fixed 'Q' (defeatable) with port for optional remote bass control (RBC-1)
Dual mono speaker output connections	Accept up to 8 AWG wire
+12V and Ground connections	Accept up to 4 AWG wire

Specifications:

Rated Power 12.5 V Stereo	45W RMS x 4 @ 4 ohm 75W RMS x 4 @ 2 ohm
Rated Power 12.5 V Bridged	90W RMS x 2 @ 8 ohm 150W RMS x 2 @ 4 ohm
Rated Power 14.5 V Stereo	70 W RMS x 4 @ 4 ohm 110 W RMS x 4 @ 2 ohm
Rated Power 14.5 V Bridged	140 W RMS x 2 @ 8 ohm 220 W RMS x 2 @ 4 ohm
THD at Rated Power	12.5V: <0.08% THD, 20 Hz - 20 kHz 14.4V: <1% THD, 20 Hz - 20 kHz
S/N Ratio	>104 dB referred to rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth)
Frequency Response	10 Hz – 25 kHz (+0, -1dB)
Damping Factor	>200 @ 4 ohm per ch. / 50 Hz >100 @ 2 ohm per ch. / 50 Hz
Slew Rate	± 22V / µs
Input Range	200mV – 8V RMS