JL Audio Monoblock Class D Wide-Range Amplifier MX300/1

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MX300/1
Monoblock Class D Wide-Range Amplifier, 300 W x 1 @ 2 Ω / 160 W x 1 @ 4 Ω - 14.4V

Engineered specifically for powersports applications, the MX300/1 monoblock amplifier employs our high-speed NexD™ switching design to pack a serious audio punch, without straining charging systems. Its tiny, cast aluminum chassis is highly resistant to corrosion, with an IPX6 water-resistance rating, making it perfect for motorcycles, ATV’s or other utility vehicles.

With a robust 300W of clean power into a 2-ohm load (14.4V, 1% THD), use one to drive a subwoofer, or grab a pair to deliver stunning output to a subwoofer system. The MX300/1 also features an adjustable low-pass crossover, a bass boost EQ, variable infrasonic filter and output polarity switch.

Its dual-range input section accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals. With the addition of an M-RBC-1 remote level control (sold separately), subwoofer output can be directly controlled from the driver’s seat.

This amplifier features a black powder-coated finish, a gasketed cover for the controls and stainless steel hardware for durability.

Rated Continuous (RMS) Power @ 14.4 V
@ 4 Ω 160 W RMS x 1
@ 3 Ω 220 W RMS x 1
@ 2 Ω 300 W RMS x 1
@ 1.5 Ω N/A
Rated Continuous (RMS) Power @ 12.5 V
@ 4 Ω 160 W RMS x 1
@ 3 Ω 200 W RMS x 1
@ 2 Ω 250 W RMS x 1
@ 1.5 Ω N/A
General Specifications
Frequency Response 20 Hz - 12 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power >85 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W >64 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<1% @ 2 Ω
Input Voltage Range @ RCA Inputs Switchable from 250 mV - 4 V RMS (Low) to 750 mV - 15 V RMS (High)
Min.Copper Power / Ground Wire Gauge 8 AWG wire
Fuse Rating 30 A (AFS, AGU or MaxiFuse™)
shipping Info
Filter Mode(s) Low-Pass only
Filter Slope(s) 24 dB/octave
Filter Frequency Range 40 Hz - 400 Hz
Detented, Calibrated Filter Freq. Potentiometer Yes
Filter Defeat Function Yes
Infrasonic Filter 20 Hz - 40 Hz, variable
Bass Boost EQ 0 to +12 dB @ 43 Hz
Output Polarity SwitchYes
Remote Subwoofer Level Control Optional (M-RBC-1)
Remote Bass EQ Boost Control No
Pass-Through Preamp Output None

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