QSC HPR122i, HPR152i, HPR153i, HPR151i, HPR181i - Manual

7 Installation (continued) Pick Points (suspended installations) The HPR152i and HPR153i enclosures feature three load-rated pick points. The HPR122i enclosure features nine load-rated pick points. As shipped from the factory, each pick point has a bolt or plug installed to retain the air-tight desi...

8 AC Mains Connect AC power to the IEC socket on the back of the amplifier by locating the IEC connector-end of the AC power cord and inserting it fully into the IEC inlet on the power amplifier module. NOTE: Turn off the AC power switch before connecting AC power. An AC power cord hook-and-loop tet...

9 Input Connections Full-range models have one female XLR line-level input marked FULL RANGE LINE IN. Subwoofers have a second set of connectors, one for the left channel’s audio and one for the right channel’s audio. We recommend balanced connections be used. Balanced con-nections will reduce AC hu...

10 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 ...

11 GAIN Control The GAIN control is marked in dB of attenuation. There are 21 detents for repeatable adjustments. Turn the GAIN con-trol clockwise to increase gain and counter clockwise to decrease gain. The upper 14 steps are about 1 dB each and settings should normally be made within this range. W...

12 Front LED Switch The Front LED Switch, located on the rear panel, is used to enable or disable the LED located on the front of the enclosure near the bottom of the grill. Slide the switch to the ON position to enable the front LED and slide it to the OFF position to disable the front LED. Most ap...

14 Application Example #1 This example shows a two-channel (stereo) setup utilizing two top-boxes. Audio signals for the Left and Right channels are supplied by the mixer console. This signal source can be just about any variable-output level audio source, such as DJ mixers, profes-sional CD players...

15 Application Example #2 This example shows a two-channel (stereo) setup utilizing one subwoofer and two top-boxes. Audio signals for the Left and Right channels are supplied by the mixer console. This signal source can be just about any variable-output level audio source, such as DJ mixers, profes...

16 Application Example #3 This example shows a two-channel (stereo) setup utiliz-ing two subwoofers and two top-boxes. Audio signals for the Left and Right channels are supplied by the mixer console. This signal source can be just about any variable-output level audio source, such as DJ mix-ers, pro...

17 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 o...

18 Application Example #5 This example shows a two-chan-nel (stereo) setup utilizing two HPR122i loudspeakers as floor monitors. Audio signals for the Left and Right channels are supplied by the mixer console auxiliary buss. This allows the monitor level to be adjusted independently from the main (h...

21 Specifications, HPR122i HPR122i Frequency Response, -3dB 62-18k Hz Frequency Range, -10dB 53-22k Hz Maximum Peak SPL 131dB Nominal coverage, H x V 75°x75° Directivity Index 9.7 Directivity Factor 9.4 Transducer Description 12” (309mm) transducer with 3” (76mm) voice coil 1” (25mm) throat compress...