subwoofer amplifier
500W CLASS A/B AMPLIFIER
Power, Control, Performance,
Authority and Value - the
Model 500 subwoofer
amplifier has been designed
to deliver it all. This 500W,
class A/B amplifier utilizes
patented BASH® technology
for high electrical efficiency
and musical excellence.
Four independent controls provide
the flexibility to integrate nearly all
subwoofers with the main speakers
and the listening environment.
The continuously-variable low pass
filter adjusts from 40 – 120Hz and can be bypassed when used with a home theatre 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 is capable of reproducing. This maximizes
performance, helps to protect the woofer from being overdriven, and reduces distortion by limiting
extreme subwoofer driver excursions.
Defeatable Auto-power mode turns the amplifier on automatically when a signal is detected. It can
be defeated 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.
The MODEL 500 incorporates stereo Line-Level inputs and outputs that permit the amplifier to
be connected between a preamplifier and amplifier without the need for Y-connectors. The
Line-Level inputs also incorporate a buffered internal summing network so that a mono signal
is derived from the left and right channels while maintaining the stereo signal integrity for the
main stereo speakers. A double-insulated, isolated-ground electrical supply prevents electrical
ground loops and reduces the noise floor of the entire audio system, providing a silent
backdrop for superior music production.
5 Year Parts & Labor Limited Warranty
ISO 9001 Certified Factory
SUBWOOFER AMPLIFIER
®
SPECIFICATIONS
Frequency Response...............................
Crossover Frequency...............................
Phase Adjustment...................................
Amplifier Output Power..........................
Distortion.................................................
Audio Inputs............................................
Input Impedance.....................................
Input Power.............................................
Input Power Connection.........................
Power (Mains) Fuse.................................
Power Modes...........................................
Auto Off Delay.........................................
Dimensions (with feet, without ears)....
Weight......................................................
Shipping Dimensions...............................
Shipping Weight . ....................................
20 – 300Hz
40 – 120Hz (Low-pass filter with bypass switch)
0 – 180 degrees (Continuously variable)
500 watts RMS into 4 ohms, with thermal and clipping limiters
250 watts RMS into 8 ohms, with thermal and clipping limiters
Less than 0.2% at rated power
Summing stereo line level (RCA x2)
LFE (RCA shared with Left input connector)
Line-Level – 20k ohms, Unbalanced
120V 60Hz AC
IEC 2-wire receptacle with integral fuse holder
5A 250V T5AL (5x20mm) style Slow Blow
Auto signal sensing and always on
~10 minutes
16⅞"W x 3⅞"H x 14¾"D, (429W x 98H x 375D)mm
15lbs (6.8kg)
21½"W x 8½"H x 17½"D, (550W x 220H x 450D)mm
20lbs (9.1kg)
Model 500 Amplifier shown with Rack Ears (included)
®
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