JL Audio MX Marine and Powersports Amplifiers

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Overview PLAY ANYWHERE
With efficient NexD technology and a water-resistant chassis, MX amplifiers produce loads of clean power and are ideal for applications where moisture cannot be completely avoided.
DESIGNED FOR LIMITED SPACE APPLICATIONS
SHOCK-RESISTANT, WATER-RESISTANT AND BUILT TOUGH
EFFICIENT DESIGN FOR HIGH OUTPUT USES LESS ENERGY
COMPLETE SIGNAL PROCESSING SECTIONS ON BOARD
EXCEEDS INTERNATIONAL STANDARDS FOR SALT FOG AND UV EXPOSURE
3-YEAR WARRANTY
WHAT YOU’LL LOVEPOWER TO GO ANYWHEREHoused in a tiny cast-aluminum chassis, MX amps are rugged, water-resistant (IPX7-rated) and ready to go where conventional amplifiers wouldn’t dare.
NexD ADVANTAGEThe highly efficient Class-D design reduces current draw and heat while generating loads of high-fidelity sound without straining small charging systems.
COMPLETE SIGNAL PROCESSINGFor easy setup and system flexibility, a complete set of onboard filters and signal processing features is concealed behind every MX amplifier’s water-resistant control cover.
DIFFERENTIAL-BALANCED INPUTSA versatile design accepts speaker level signals without a line-output converter – and delivers outstanding noise rejection while preventing alternator whine and other noises.
BUILT FOR THE ELEMENTSThe all-aluminum, powder-coated housing with marine-grade hardware inhibits corrosion, and a water-resistant security cover protects all controls from the harshest of seasons.
CHOOSE YOUR MODELFULL-RANGE STEREOThese amplifiers offer two 4-channel models with 280 and 500 watts.
SYSTEM AMPLIFIERIt’s a tiny 600-watt powerhouse with 2 full-range outputs plus a subwoofer output.
MONOBLOCKTwo models are available with 300 and 500 watts.
Specs GeneralWarranty3 yearsChannelsMonoblock/3/4Physical dimensions (Height)1.77″ (45 mm)Physical dimensions (Width)Monoblock (300 W)/4-Channel (280 W): 8.66″ (220 mm)
Monoblock (500 W)/3/4-Channel (500 W): 9.33″ (237 mm)Physical dimensions (Depth)Monoblock (300 W)/4-Channel (280 W): 3.09″ (78.5 mm)
Monoblock (500 W )/3/4-Channel (500 W): 4.50″ (115 mm)Weight
3.18 lbs (1.44 kg)
Operating voltage11-15 VDCWater and dust ratingIPX7AudioAmplifier classClass DRated continuous (RMS) power (14.4 V input @ 4 Ohm Monoblock (300 W): 160 W x 1
Monoblock (500 W): 300 W x 1
3-Channel: Main: 75 W x 2/Sub: 250 W x 1
4-Channel (280 W): 50 W x 4/140 W x 2 (Bridged)
4-Channel (500 W): 70 W x 4/250 W x 2 (Bridged)Rated continuous (RMS) power (14.4 V input @ 2 Ohm Monoblock (300 W): 300 W x 1
Monoblock (500 W): 500 W x 1
3-Channel: Main: 100 W x 2/Sub: 400 W x 1
4-Channel (280 W): 70 W x 4
4-Channel (500 W): 125 W x 4Rated continuous (RMS) power (12.5 V input @ 4 Ohm Monoblock (300 W): 160 W x 1
Monoblock (500 W): 250 W x 1
3-Channel: Main: 50 W x 2/Sub: 200 W x 1
4-Channel (280 W): 36 W x 4/100 W x 2 (Bridged)
4-Channel (500 W): 55 W x 4/180 W x 2 (Bridged)Rated continuous (RMS) power (12.5 V input @ 2 Ohm Monoblock (300 W): 250 W x 1
Monoblock (500 W): 400 W x 1
3-Channel: Main: 80 W x 2/Sub: 300 W x 1
4-Channel (280 W): 52 W x 4
4-Channel (500 W): 90 W x 4Signal-to-noise ratio, referred to highest rated power (A-weighted, 20 Hz-20 kHz noise bandwidth): Analog inputsMonoblock (300 W): > 85 dB
Monoblock (500 W): > 97 dB
4-Channel (280 W): > 89.5 dB
4-Channel (500 W): > 88 dBSignal-to-noise ratio, referred to highest rated power (A-weighted, 20 Hz-20 kHz noise bandwidth): Analog inputs – Main channels3-Channel: > 88 dBSignal-to-noise ratio, referred to highest rated power (A-weighted, 20 Hz-20 kHz noise bandwidth): Analog inputs – Subwoofer channel3-Channel: > 88 dBSignal-to-noise ratio, referred to 1 W (A-weighted, 20 Hz-20 kHz noise bandwidth): Analog inputsMonoblock (300 W): > 64 dB
Monoblock (500 W): > 70 dB
4-Channel (280 W): > 68 dB
4-Channel (500 W): > 70.5 dBSignal-to-noise ratio, referred to 1 W (A-weighted, 20 Hz-20 kHz noise bandwidth): Analog inputs – Main channels3-Channel: > 68 dBSignal-to-noise ratio, referred to 1 W (A-weighted, 20 Hz-20 kHz noise bandwidth): Analog inputs – Subwoofer channel3-Channel: > 68 dBDamping factor @ 4 ΩMonoblock (300 W): > 120/50 Hz
Monoblock (500 W): > 115/50 Hz
4-Channel (280 W): > 60/50 Hz
4-Channel (500 W): > 92/50 Hz
Damping factor @ 2 ΩMonoblock (300 W): > 75/50 Hz
Monoblock (500 W): > 54/50 Hz
4-Channel (280 W): > 30/50 Hz
4-Channel (500 W): > 43/50 HzTHD+N @ rated powerMonoblock (300 W/500 W)/4-Channel (280 W): THD+N @ rated power: Main channelsTHD+N @ rated power: Subwoofer channelFrequency response (+0, -1dB)Monoblock (300 W)/3/4-Channel (280 W/500 W): 20 Hz-20 kHz
Monoblock (500 W): 20 Hz-12 kHzInput voltage range @ RCA inputsMonoblock (500 W)/3-Channel: Switchable from 250 mV-4 V RMS (Low) to 580 mV-14 V RMS (High)
Monoblock (300 W)/4-Channel (280 W/500 W): Switchable from 250 mV-4 V RMS (Low) to 750 mV-15 V RMS (High)Fuse ratingMonoblock (300 W): 30 A
Monoblock (500 W)/4-Channel (500 W): 50 A
3-Channel: 60 A
4-Channel (280 W): 35 ARecommended fuse type(s)AFS, AGU or MaxiFuseMinimum copper power/ground wire gaugeMonoblock (300 W)/4-Channel (280 W): 8 AWG wire
Monoblock (500 W)/3/4-Channel (500 W): 4 AWG wireSignal ProcessingFilter mode(s): Channels 1 & 2Monoblock (300 W/500 W): Off or Low-Pass only
3/4-Channel (280 W/500W): Off, Low-Pass or High-PassFilter slope(s): Channels 1 & 2Monoblock (300 W)/4-Channel (280 W/500 W): 12 dB/octave
Monoblock (500 W): 24 dB/octaveFilter frequency range: Channels 1 & 2Monoblock (300 W): 40 Hz-400 Hz
4-Channel (280 W/500 W): 35 Hz-300 HzFilter mode(s): Channels 3 & 44-Channel (280 W/500 W): Off, Low-Pass or High-PassFilter slope(s): Channels 3 & 44-Channel (280 W/500 W): 12 dB/octaveFilter frequency range: Channels 3 & 44-Channel (280 W/500 W): 35 Hz-300 HzFilter mode(s): Subwoofer channel 3-Channel: Off or Low-Pass onlyFilter slope(s): Subwoofer channel3-Channel: 12 dB/octaveFilter frequency range: Subwoofer channel3-Channel: 40 Hz-400 HzBass boost EQ (0 to +12 dB @ 45 Hz)Monoblock (300 W/500 W): 0 to +12 dB @ 43 HzDetented, calibrated filter frequent potentiometersRemote level controlMonoblock (300 W/500 W)/3-Channel: Optional (RBC-1)Channel input mode switch3-Channel: yes (2/4 Channels)
4-Channel (280 W/500 W): yes (2/3/4 Channels)Output polarity switchMonoblock (300 W/500 W)/3-Channel: yesIn the Box
MX amplifier with power/signal pigtails
Four 1-inch self-tapping screws
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