This is a new, never used, 400 watt mono-block subwoofer amplifier. The box is a little scuffed up from storage/shelf time but it is in its original double factory box. I installed the rack ears a while back but never got to install or use the amp. It was supposed to be for a dual 10" passive RBH sub but those plans have all been changed for now so time to part with it.
As a custom installer and RBH dealer, I've used a lot of these amps over the years and they never disappoint. RBH Products are truly impressive in build and durability.
RBH Subwoofer Amplifiers provide the power needed for an intense, pulse-pounding home theater experience. The RBH SA-400 amplifier makes it easy to add deep, clean and powerful bass to any audio system. This amplifier is easily incorporated into any audio or home theater system and are packed with features designed to make the integration of subwoofers or bi-amplified tower speakers as seamless as possible. The SA-400 Subwoofer Amplifier is RBH’s highest performance amplifier. The SA-400 is the amplifier of choice for powering subwoofer sections of the Signature Series T System, Signature Series tower speakers and Signature Series freestanding and in-floor subwoofers. Capable of providing 400 Watts of continuous power, the SA-400 makes easy work of adding strong, powerful bass to any audio or home theater system.
Unlike most subwoofer amps which are Class D, the SA-400 is a true 400 watt Class AB/G design.
Model Name: SA-400 Amplifier
Type: Discrete Class A/B Subwoofer Amplifier
Power Output: 400 Watts RMS @ 4 Ohms
Distortion (THD): <.04% @ 1 Watt S/N Ratio: <82dB (Without Filter)
Line Level Input Impedance: 45 Kohms
Speaker Level Input Impedance: 200 Ohms Line
Level Input Sensitivity: 80 mV
Speaker Level Input Sensitivity: 2.8V
Crossover Slope: 12dB/Octave
Crossover Freq. Range: 40-180Hz ±dB
Auto Turn-on Sensitivity: 2 mV @ 50 Hz
Frequency Response: 20Hz-40kHz ±3dB (filter off) 15Hz-40kHz ±3dB (boost on)
Boost: 4dB @ 25Hz
Damping Factor: >200
Cabinet Material and Finsh: Black Metal Alloy
Dimensions (w rack mounts): 19" W x 4" H x 14" D (482mm W x 101mm H x 355mm D) Dimensions (w/o rack mounts): 17-3/4" W x 4" H x 14" D (450mm W x 101mm H x 355mm D) Rack Mount Holes (horizontal): 18-3/4"(476mm) (center to center)
Rack Mount Holes (vertical): 3"(76mm) (center to center) Weight: 25 lbs. (11.34 kg) Warranty: 1 year