Output Connections

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.

1= shield (ground) 3= minus (-)

2= plus (+)

Full-range loudspeaker’s Input (IN) and Output (OUT) Connectors

Subwoofer loudspeaker’s Input (IN) and Output (OUT) Connectors

Unbalanced inputs: Connect to the plug as shown. Pin 3 and pin 1 must be connected with a jumper as shown.

1= shield (ground)

3= jumper to pin 1 2= plus (+)

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.

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.