JL AUDIO (MX500/1) MONOBLOCK CLASS D FULL-RANGE AMPLIFIER, 300 WATTS X 1 @ 4 OHM / 500 WATTS X 1 @ 2 OHM - 14.4V OVERVIEW: Engineered specifically for powersports applications, the MX500/1 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 IPX7 water-resistance rating, making it perfect for motorcycles, ATV’s or other utility vehicles. With a robust 500W 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 MX500/1 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 rugged powder-coated finish, a gasketed cover for the controls and stainless steel hardware for durability. RATED CONTINUOUS (RMS) POWER @ 14.4 V @ 4 Ω : 300 W RMS x 1 @ 3 Ω : 400 W RMS x 1 @ 2 Ω : 500 W RMS x 1 @ 1.5 Ω : N/A RATED CONTINUOUS (RMS) POWER @ 12.5 V @ 4 Ω : 250 W RMS x 1 @ 3 Ω : 300 W RMS x 1 @ 2 Ω : 400 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 : >97 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W : >70 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω : >115 / 50 Hz Damping Factor @ 2 Ω : >54 / 50 Hz THD+N @ Rated Power :