A three-way
toggle switch
on the front selects
between high and low frequency settings, with the
classic treble booster frequency in the center switch
position. Internal dipswitches allow you to choose the
“high” and “low” frequencies available on the toggle. 8
frequency choices are available for each setting. There is
a chart on the inside of the enclosure cover for reference.
The
Low
range setting offers
eight frequencies from 1.5 kHz
all the way down to 570 Hz.
The
High
range setting offers
eight cutoff frequencies from
2.5 kHz to 1 kHz.
The
battery compartment
is located behind the back
cover. The battery will be disconnected when either the
input jack is unplugged, or a power adaptor is plugged
in.
