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5-Channel Class D System Amplifier, 70 W x 4 @ 4 Ω + 500 W x 1 @ 2 Ω - 14.4V

Crafted as an all-in-one, total system solution, the RD900/5 is engineered to power a complete audio system consisting of a subwoofer + four satellite system with 900 watts of high-performance sound. Equipped with our exclusive NexD switching technology, this complete power package efficiently generates a potent 70 watts of crystal-clear audio into 4 ohms, plus a robust 500 watts for a subwoofer system, all from a single compact chassis. Each pair of main channels is also fully bridgeable, stoutly producing 200 watts of full-range audio bliss (into 4 ohms), creating an ultra-powerful 3-channel amplifier.

Conveniently located on top of the RD900/5, youll find a complement of studio-grade signal processing features, 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.

LED clipping indicators are also standard equipment for each channel section. This all-new, innovative feature lets you easily set your amplifiers input sensitivity settings, quickly and accurately, 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 conveniently control the subwoofers output remotely from the drivers seat.

Features

Rated Continuous (RMS) Power @ 14.4 V Main Channels @ 4 Ω: 70 W RMS x 4
Rated Continuous (RMS) Power @ 14.4 V Main Channels @ 2 Ω: 100 W RMS x 4
Rated Continuous (RMS) Power @ 14.4 V Main Channels - Bridged @ 4Ω: 200 W RMS x 2
Rated Continuous (RMS) Power @ 14.4 V Subwoofer Channel @ 4 Ω: 225 W RMS x 1
Rated Continuous (RMS) Power @ 14.4 V Subwoofer Channel @ 3 Ω: 325 W RMS x 1
Rated Continuous (RMS) Power @ 14.4 V Subwoofer Channel @ 2 Ω: 500 W RMS x 1
Rated Continuous (RMS) Power @ 14.4 V Subwoofer Channel @ 1.5 Ω: N/A
Rated Continuous (RMS) Power @ 12.5 V Main Channels @ 4 Ω: 60 W RMS x 4
Rated Continuous (RMS) Power @ 12.5 V Main Channels @ 2 Ω: 90 W RMS x 4
Rated Continuous (RMS) Power @ 12.5 V Main Channels - Bridged @ 4Ω: 180 W RMS x 2
Rated Continuous (RMS) Power @ 12.5 V Subwoofer Channel @ 4 Ω: 200 W RMS x 1
Rated Continuous (RMS) Power @ 12.5 V Subwoofer Channel @ 3 Ω: 250 W RMS x 1
Rated Continuous (RMS) Power @ 12.5 V Subwoofer Channel @ 2 Ω: 350 W RMS x 1
Rated Continuous (RMS) Power @ 12.5 V Subwoofer Channel @ 1.5 Ω: N/A
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 @ 4 Ω: >150 / 50 Hz
Damping Factor @ 2 Ω: >75 / 50 Hz
THD+N @ Rated Power (Main Channels): <1% @ 2 Ω per Ch.
THD+N @ Rated Power (Subwoofer Channels): <1% @ 2 Ω per Ch.
Input Voltage Range @ 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™)
Filter Mode(s): Channels 1 & 2 (front): High-Pass only
Filter Slope(s): Channels 1 & 2 (front): 12 dB/octave
Filter Frequency Range: Channels 1 & 2 (front): 50 Hz - 500 Hz
Filter Mode(s): Channels 3 & 4 (rear): High-Pass only
Filter Slope(s): Channels 3 & 4 (rear): 12 dB/octave
Filter Frequency Range: Channels 3 & 4: 50 Hz - 500 Hz
Filter Mode(s): Subwoofer Channel: Low-Pass only
Filter Slope(s): Subwoofer Channel: 12 dB/octave
Filter Frequency Range: Subwoofer Channel: 50 Hz - 500 Hz
Detented, Calibrated Filter Freq. Potentiometers: No
Filter Defeat Function: No
Infrasonic Filter: Subwoofer Channel: No
Remote Level Control: Optional (RBC-1)
Remote Level Modes: Sub Ch.
Channel Input Mode Switch: Yes (2/4/6 ch.)
Pass-Through Preamp Output: No
Source Channel Selection for PreOuts: N/A
Height (H): 2.13 in / 54 mm
Width (W): 14.66 in / 372 mm
Depth (D): 6.96 in / 177 mm
Net Weight: 6.15 lb / 2.79 kg

More Information

Channels	5 Channel
RMS Power @ 4 Ohm	70W x 4 or 200W x 2 _ 225W x 1
RMS Power @ 2 Ohm	100W x 4 + 500W x 1
RMS Power @ 1 Ohm	N/A
Crossover Channel 1/2	HP 50-500Hz @ 12dB/oct
Crossover Channel 3/4	HP 50-500Hz @ 12dB/oct
Crossover Channel 5/6	LP 50-500Hz @ 12dB/oct
Subsonic Filter	30Hz
Bass Boost	No
Speaker Level Input	Yes (via RCA)
Auto Turn-On	Yes
Remote Sub Controller	Optional (RBC-1)
Dimensions	54 x 372 x 177mm