QSC Audio HPR122i, HPR152i, HPR153i, HPR151i, HPR181i Input Connections, Full Range Line

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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 hum and interference, especially with long cable runs. Unbalanced connections may be suitable for short cables. The input impedance is 22k ohm for balanced con- nections or 11k ohm for unbalanced connections. The signal's source impedance should be less than 600 ohms.

HPR122i, HPR152i and HPR153i: Insert the male XLR input into the jack marked FULL RANGE LINE IN. Ensure the connector is fully seated.

HPR151i and HPR181i: 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.

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 signal into the con- nector marked FULL RANGE LINE IN R (the bottom input con- nector). 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 loudspeakers.

Balanced inputs: Connect to the plug as shown.

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

2= plus (+)

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

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

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Contents TD-000234-00 Important Safety Precautions & Explanation of Symbols Introduction HPR122i FeaturesHPR151i Features HPR153i FeaturesSubwoofer Amplifier Detail Full Range Amplifier DetailHPR122i Warning InstallationHPR152i Warning How They Should Be UsedCooling Pick Points suspended installationsLED Power Indicator Power SwitchSystem Power Sequencing AC MainsFull Range Line Input ConnectionsOutput Connections HPR122i, HPR152i and HPR153iHPR151i and HPR181i Subwoofer Gain Notes Gain ControlFilter OFF Full Range Filter on 100 Hz Low-CutFront LED Switch Polarity Switch HPR151i and HPR181iHow to Use the Polarity Switch Limit Indicator LED Signal Indicator LEDApplication Example #1 Application Example #2 CUT Filter Application Example #3Application Example #4 Application Example #5 Dimensions, HPR122iDimensions, HPR152i Dimensions, HPR153i Dimensions, HPR151i Dimensions, HPR181i Specifications, HPR122i HPR152i Specifications, HPR152i and HPR153iHPR151i HPR181i Specifications, HPR151i and HPR181iDisclaimer QSC Audio Products 3 Year Limited Warranty

HPR122i, HPR152i, HPR153i, HPR151i, HPR181i specifications

QSC Audio is renowned for delivering high-quality audio solutions, and their HPR series is a testament to this commitment. The HPR122i, HPR152i, HPR153i, HPR151i, and HPR181i are standout models in the lineup, catering to a variety of sound reinforcement needs.

Starting with the HPR122i, this model is a 12-inch two-way loudspeaker designed for portable applications. It features a built-in 1000-watt Class D power amplifier, delivering exceptional clarity and high output. The rugged birch plywood enclosure enhances durability, while the advanced waveguide technology ensures a wide dispersion pattern, making it ideal for both live sound and permanent installations.

Moving up, the HPR152i showcases a larger 15-inch woofer, perfect for larger venues where deep bass and punchy sound are required. It retains the same robust build quality and integrated amplification as its smaller counterpart, ensuring reliability during extended use. The HPR152i’s contoured design allows for versatile positioning, whether it's on stands or as a floor monitor.

The HPR153i takes it a step further, offering a three-way design for even greater fidelity. With a dedicated 15-inch woofer, a 6.5-inch midrange, and a 1-inch compression driver, the HPR153i delivers a rich and detailed sound across all frequencies. This model is especially favored in settings where clarity and precision are paramount, such as concert halls and theatres.

Not to be overlooked, the HPR151i is a powerful subwoofer that complements the full-range speakers in the HPR series. Its 15-inch driver, paired with a 1000-watt Class D amplifier, delivers deep, impactful bass, enhancing the overall sonic experience. The HPR151i is ideal for situations requiring enhanced low-frequency response, making it a great match for DJs and live performers.

Finally, the HPR181i subwoofer elevates the low-end even further with its 18-inch woofer. This model is designed for serious bass enthusiasts, providing thunderous lows that can fill large spaces. Its robust design and advanced thermal management allow for extended use without overheating.

All models in the HPR series incorporate QSC’s Digital Signal Processing (DSP) technology, ensuring optimal sound performance and system protection. With their rugged construction, advanced features, and powerful sound, the QSC HPR series stands out as a top choice for audio professionals seeking reliability and exceptional performance in live sound applications. Whether for music, speech, or multimedia, the HPR series effectively meets the demands of diverse sound environments.
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