JL AUDIO (RD1500/1) MONOBLOCK CLASS D AMPLIFIER, 750 WATTS X 1 @ 4 OHM / 1500 WATTS X 1 @ 2 OR 1 OHM - 14.4V FEATURES: Engineered for high-power, subwoofer applications, the RD1500/1 monoblock amplifier is built to deliver staggering amounts of world-class bass output. Equipped with a special low impedance circuit, the RD1500/1 is capable of generating a whopping 1500 watts of output power, at either 1 or 2 ohms (14.4V, 1% THD). At the heart of this ultra-sleek and compact power plant is JL Audio’s exclusive NexD™ Class D technology, permitting high power output with exceptional efficiency and low distortion. For your convenience, all of the RD1500/1’s controls are located on top of the amplifier, beneath a protective cover, with all connections found along one side of its chassis. Signal processing features include a 12 dB / octave low-pass filter, with continuously variable frequency selection from 50-500 Hz, and a variable bass boost EQ. Dual-range, differential-balance inputs are also onboard, capable of accepting most input voltage levels. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard, along with a set of preamp outputs so you can easily pass signals to another amplifier. The RD1500/1 is also equipped with an onboard LED-clipping indicator. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity setting, quickly and accurately, with no special equipment needed. The RD1500/1 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition. Control of the subwoofer level from the driver’s seat is easily accomplished with the addition of the optional RBC-1 remote level control (sold separately). RATED CONTINUOUS (RMS) POWER @ 14.4 V @ 4 Ω : 750 W RMS x 1, Requires “Low Z” switch to be in “2Ω” position @ 3 Ω : 1000 W RMS x 1, Requires “Low Z” switch to be in “2Ω” position @ 2 Ω : 1500 W RMS x 1, Requires “Low Z” switch to be in “2Ω” position @ 1 Ω : 1500 W RMS x 1, Requires “Low Z” switch to be in “1Ω” position RATED CONTINUOUS (RMS) POWER @ 12.5 V @ 4 Ω : 750 W RMS x 1, Requires “Low Z” switch to be in “2Ω” position @ 3 Ω : 1000 W RMS x 1, Requires “Low Z” switch to be in “2Ω” position @ 2 Ω : 1200 W RMS x 1, Requires “Low Z” switch to be in “2Ω” position @ 1 Ω : 1500 W RMS x 1, Requires “Low Z” switch to be in “1Ω” position GENERAL SPECIFICATIONS: Frequency Response : 7 Hz - 500 Hz (+0, -1dB) S/N Ratio, referred to highest rated power : >82 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W : >50 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω : >1100 / 50 Hz Damping Factor @ 2 Ω : >550 / 50 Hz THD+N @ Rated Power :
