QSC Audio HPR122i, HPR152i, HPR153i, HPR151i, HPR181i user manual Application Example #4

Application Example #4

This example shows a two-channel (stereo) setup utilizing two sub- woofers and multiple top-boxes.

This is the same as Application Example #3 except an additional top-box has been added to each channel (and more could be added).

To connect to additional top-boxes, connect a cable from the last top box’s FULL RANGE LINE OUT con- nector to the next top-box’s FULL RANGE LINE IN connector. Up to 20 top-boxes could be “daisy-chained” without degrading signal quality.

Application Example #4 physical diagram.

Channel 1 or

Left Channel

Channel 2 or

Right Channel

HPR122i, HPR152i, or HPR153i

Application Example #4 hookup diagram.

Use only high-quality balanced cables for interconnecting the audio equipment.

Ensure the top-boxes have their 100 Hz LOW- CUT FILTER switched on when connecting to the subwoofer’s FULL RANGE LINE OUT as a signal source.

Also, be sure to use either the Left or Right (marked L or R) on the subwoofers. If the sub- woofer’s input is connected to the Right (R) channel connector and the output to the top- boxes is connected to the Left (L) channel connector, no signal will reach the top-box (no sound from the top-box).

HPR122i, HPR152i, or HPR153i

HPR151i or HPR181i

Mixer or Other Audio Source

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