Model 500 Subwoofer Amplifier

Model 500 Subwoofer Amplifier - Back Thumbnail
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  The Model 500 comes with Rack Ears &Power Cable



5 Year Parts & Labor Limited Warranty

CEDIA, CE  and RoHS Logos

MODEL 500 *Discontinued*

Subwoofer Amplifier


The MODEL 500 subwoofer amplifier was designed to offer performance, value, and flexibility. It incorporates a 500W class A/B amplifier utilizing the patented BASH® technology for high electrical efficiency.

Four independent controls offer flexibility to integrate nearly all subwoofers with the main speakers and the listening environment. The continuously-variable low pass filter network is adjustable from 40 to 120Hz and can be bypassed if it is preferable to use an external filter or one located in an outboard receiver or processor. The continuously-variable phase circuit is adjustable from 0 to 180 degrees to finely integrate the subwoofer with the main listening speakers.

The MODEL 500 incorporates a unique subsonic filter adjustable from 20 – 35Hz that limits/extends power output to the lowest frequency the subwoofer driver is capable of reproducing. This maximizes performance, helps to protect the subwoofer driver from being overdriven and will reduce distortion by limiting extreme subwoofer driver excursions.

A defeatable Auto-power mode turns the amplifier on automatically when a signal is detected. The Auto-power mode can be defeated if it is desirable to use a remote AC circuit to control the amplifier (on/off) power. Dual subwoofer outputs allow multiple woofers to be connected to the same amplifier without having to resort to pigtails, wire nuts, or specialized connectors.

Model Number: Model 500: Subwoofer Amplifier
Frequency Response: 20-300Hz
Crossover Frequency: 40-120Hz (Low-pass filter with bypass switch)
Phase Adjustment: 0-180 degrees (Continuoulsy variable)
Amplfier Output Power: 500 watts RMS into 4 ohms, with thermal clipping limiters 
250 watts RMS into 8 ohms, with thermal clipping limiters 
Distortion: Less than 0.2% at rated power
Audio Inputs: Summing stereo line level (RCA x2) LFE (RCA shared 
with Left input connector)
Input Impedance: Line-Level - 20k ohms, Unbalanced
Input Power: 120V 60Hz AC
Input Power Connection: IEC 2-wire receptacle with integral fuse holder
Power (Mains) Fuse: 5A 250V T5AL (5x20mm) style Slow Blow
Power Modes: Auto signal sensing and always on
Auto Off Delay: ~ 10 minutes

Dimensions: (with feet, without ears): 
  16-7/8" W x 3-7/8" H x 14-3/4" D (429W x 98H x 375D)mm
Shipping Dimensions: 21-1/2" W x 8-1/2" H x 17-1/2" D (550W x 220H x 450D)mm
Shipping Weight: 20lbs (9.1kg)
Net Weight:  15lbs (6.8kg)