JL AUDIO RD900/5
900 W 5 Ch. Class D System Amplifier
GENERAL FEATURES:
5-Channel Class D System Amplifier
70 W x 4 at 4 Ω + 500 W x 1 at 2 Ω - 14.4V
All-in-one total system solution. The RD900/5 is designed to power a complete audio system consisting of a subwoofer + four speaker system with 900 watts of high-performance sound. This total power package efficiently generates a powerful 70 watts of crystal-clear audio into 4 ohms, plus a robust 500 watts for a subwoofer system. This single compact chassis uses the exclusive NexD™ switching technology. Each pair of main channels is also fully bridgeable, producing 200 watts of full-range audio awesomeness (into 4 ohms), creating an ultra-powerful 3-channel amplifier.
You’ll find a complement of studio-grade signal processing features conveniently located on top of the RD900/5, all hidden beneath a removable protective cover. Each pair of main channels is equipped with a 12 dB / octave high-pass filter, with a dedicated low-pass filter for its subwoofer channel. All three crossovers offer continuously variable frequency selection from 50-500 Hz, for precise filtering. Dual-range, differential-balanced inputs are also onboard, capable of accepting most input voltage levels, plus automatic turn-on capability (via signal sensing or DC-offset sensing) for maximum versatility.
Each channel section includes LED clipping indicators that are standard equipment. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity settings, with no special equipment needed. The RD900/5 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer’s output remotely from the driver’s seat.
Specifications
Frequency Response (Main Channels): 12 Hz - 22 kHz (+0, -1dB)
Frequency Response (Subwoofer Channel): 10 Hz - 500 Hz (+0, -1dB)
S/N Ratio, referred to highest rated power (Main Channels): >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W: >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor at 4 Ω: >150 / 50 Hz
Damping Factor at 2 Ω: >75 / 50 Hz
THD+N at Rated Power (Main Channels): <1% @ 2 Ω per Ch.
THD+N at Rated Power (Subwoofer Channels): <1% @ 2 Ω per Ch.
Input Voltage Range at RCA Inputs: Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High)
Min.Copper Power / Ground Wire Gauge: 4 AWG wire
Fuse Rating: 80 A (AFS, AGU or MaxiFuse™)
(RMS) Power at 14.4 V
Main Channels at 4 Ω: 70 W RMS x 4
Main Channels at 2 Ω: 100 W RMS x 4
Main Channels - Bridged at 4Ω: 200 W RMS x 2
Subwoofer Channel at 4 Ω: 225 W RMS x 1
Subwoofer Channel at 3 Ω: 325 W RMS x 1
Subwoofer Channel at 2 Ω: 500 W RMS x 1