The PS-12 subwoofer was designed for exceptional performance
and
value. It features a 12'' extra-long excursion woofer with high
BL motor.
The bass reflex enclosure with flared port ensures
extended bass
response and high acoustic efficiency.
The woofer is driven with an integral 300W class A/B amplifier
utilizing
the patented BASH® technology for high electrical efficiency.
The integral rear-mounted 300 watt amplifier includes level, phase
(continuously variable 0-180°), and crossover control to contour the
subwoofer’s output to blend with virtually all loudspeakers and room
environments.
The integral low pass crossover network is continuously-variable
from
40Hz to 120Hz and can be bypassed if it is preferable to use
an
external crossover located in an outboard receiver or processor.
The PS-12’s integral amplifier incorporates a defeatable signal- sensing circuit that automatically powers up the amplifier when a
signal is detected.
A double-insulated isolated-ground electrical supply prevents
electrical ground loops and reduces the noise floor of the entire
audio system.
All Loudspeakers 
