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Voltage Selector
Switch
The input connector should be used for the MAIN full-range audio input signal and the High-
Pass Filtered Output should be connected to the associated mid-hi speakers. The High-Pass
Filtered Output has a 4
40 Hz and 120 Hz is routed to the XT-15Sub's internal amplifier. Any professional-grade XLR to
XLR cable may be used for this wiring. In all cases, pin 2 on the XLR connector is the positive
terminal.
The XT-15Sub also features a Sub Gain control that allows the output level of the subwoofer to
be set to match the acoustic level of the associated mid-hi speaker. This feature may be
adjusted to suit individual music styles and room acoustics. The XT-15Sub also includes both a
clip indication led and a signal present led. The XT-15Sub amplifier should be monitored to
ensure that the clip indicator is not active. If the clip indicator is active the input gain or EQ from
the mixer should be reduced.
The XT-15Sub features a polarity reversal switch that is located directly above the sub gain
control on the input panel. When the top box is placed on a pole and located directly above the
XT-15Sub the polarity switch should be in the 0 degree ("normal") position. For applications
where the top box is not directly above the XT-15Sub the polarity switch may be changed. The
optimal configuration requires experimentation and is based on the physical separation between
the sub and top box. (i.e., if the top box is behind or in front of the sub).
order, 24 dB-per-octave filter at 120 Hz. All program material between
th
Phase reversal
switch
Output Level
XLR Line Input
Hi Pass Output
with 120Hz High
Pass filter
On/Off Switch,
Fuse Holder and
IEC Power Inlet
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