QSC Audio HPR151W - Manual (Page 7)

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1= shield (ground)
3= jumper to pin 1
2= plus (+)
Input Connections (continued)
HPR152F and HPR153F: Insert the male XLR input into the jack marked FULL RANGE
LINE IN. Ensure the connector is fully seated.
HPR151W and HPR181W: Insert the left channel’s XLR input into the left channel’s (L)
FULL RANGE LINE IN connector. Insert the right channel’s XLR connector into the
right channel’s (R) FULL RANGE LINE IN connector. If a single input signal is used,
plug into either the L (left) or R (right) channel’s input. The subwoofer’s gain should
be set within the “NORMAL” range when used with one input signal and one full-
range loudspeaker.
If two input signals are used, plug the left channel’s signal into the connector
marked FULL RANGE LINE IN L (the top input connector) and the right channel’s sig-
nal into the connector marked FULL RANGE LINE IN R (the bottom input connector).
When two input signals are applied, the subwoofer’s gain is automatically
increased 6dB as the subwoofer will likely be used with two full-range loudspeak-
ers.
Balanced inputs: Connect to the plug as shown.
Unbalanced inputs: Connect to the plug as shown. Pin 3 and pin 1 must be connected
with a jumper as shown.
Output Connections
Full-range models have one XLR output connector marked FULL RANGE LINE OUT. The
output connector is wired in parallel with the input enabling connection of multiple
enclosures in a “daisy-chain” fashion.
Subwoofer models have two sets of output connectors, one set for the left and one set
for the right audio channel. Each channel has a FULL RANGE LINE OUT connector and a
100 Hz LOW-CUT OUT connector (active 100 Hertz filter applied, non-defeatable).
We recommend balanced connections be used. Balanced connections will reduce AC
hum and interference, especially with long cable runs. Unbalanced connections may be
suitable for short cables.
HPR152F and HPR153F: Insert the XLR connector into the jack marked FULL RANGE
LINE OUT. Connect the other end of the cable to the next down-stream audio
device’s input connector. The output connector is wired in parallel with the input
connector and is not effected by the 100 Hertz low-cut filter switch setting.
Full-range loudspeaker’s Input (IN)
and Output (OUT) Connectors
1= shield (ground)
3= minus (-)
2= plus (+)
Subwoofer loudspeaker’s Input (IN)
and Output (OUT) Connectors
IMPORTANT! If using full
range loudspeakers from
another manufacturer, we rec-
ommend they be connected to
the QSC subwoofer’s 100 Hz
LOW-CUT OUT. This will
ensure proper phasing of the
full range loudspeaker with
respect to the subwoofer.