QSC HPR Series HPR122i User Manual

Pages 116

Year 2006

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QSC HPR Series HPR122i Specification

The QSC HPR Series HPR122i Loudspeaker is a high-performance, self-powered speaker designed for professional audio applications. It features a robust 12-inch low-frequency driver paired with a 1.4-inch compression driver, ensuring excellent sound clarity and coverage. The loudspeaker is capable of delivering 131 dB peak SPL, making it suitable for small to medium-sized venues.

The HPR122i incorporates a 500-watt Class H power amplifier, which efficiently drives the transducers with minimal distortion. Its frequency response ranges from 54 Hz to 20 kHz, providing a balanced sound across the audible spectrum. The loudspeaker's integrated DSP processing optimizes performance through active EQ, crossover, and protection circuitry, enhancing reliability and sound quality.

Constructed with a birch plywood enclosure, the HPR122i is designed for durability and acoustic integrity. Its rugged build is complemented by a black textured paint finish and a powder-coated steel grille, offering protection against physical damage and wear. The enclosure includes a 35 mm pole socket for stand mounting and multiple M10 rigging points for flexible installation options.

Connectivity is straightforward, with balanced XLR inputs and outputs facilitating easy integration into existing audio systems. The loudspeaker's ergonomic design, weighing approximately 60 pounds, ensures ease of transport and setup. Overall, the QSC HPR122i Loudspeaker combines advanced engineering with practical features, making it a versatile choice for live sound reinforcement, DJ setups, and fixed installations.

QSC HPR Series HPR122i F.A.Q.

How do I properly set up the QSC HPR122i Loudspeaker for optimal sound quality?

To set up the QSC HPR122i for optimal sound quality, place the speaker on a stable surface or use a speaker stand at ear level. Ensure the input signal is not distorted by setting the input gain appropriately. Position the speaker to avoid feedback loops by keeping it away from microphones. Use the built-in DSP settings for EQ adjustments to suit the acoustic environment.

What are common troubleshooting steps if the loudspeaker does not produce sound?

First, check the power cable and ensure the speaker is turned on. Verify that the input cables are connected properly and that the source device is functioning. Check the volume levels on both the speaker and the source device. Ensure that the correct input source is selected. If issues persist, inspect the fuses and replace them if necessary.

How can I prevent overheating of my QSC HPR122i during prolonged use?

To prevent overheating, ensure the loudspeaker has adequate ventilation and is not placed in direct sunlight or near heat sources. Avoid blocking the air vents. Operate the speaker at reasonable volume levels and allow for cool-down periods during extended use. Regularly clean the vents and fans to prevent dust buildup.

What maintenance should be performed to ensure longevity of the HPR122i?

Regularly inspect the power cords and input cables for wear and tear. Clean the exterior surfaces with a damp cloth and avoid using harsh chemicals. Check the speaker grille and drivers for any physical damage. Periodically test the speaker's functionality and address any issues promptly. Store in a dry environment when not in use.

How do I connect the QSC HPR122i to a mixer?

Connect the mixer's output to the HPR122i's input using a balanced XLR or TRS cable. Ensure that the mixer's output level is set to a moderate level to avoid signal distortion. Adjust the input gain on the HPR122i accordingly, and conduct a sound check to ensure proper signal flow and sound quality.

What type of cables are recommended for connecting the HPR122i to other audio equipment?

For optimal performance, use high-quality balanced XLR or TRS cables to connect the HPR122i to other audio equipment. These cables help in minimizing noise and interference. Ensure the cables are of appropriate length and are not coiled or tangled during use.

Can I use the QSC HPR122i outdoors, and what precautions should I take?

Yes, the HPR122i can be used outdoors. However, it is important to protect it from direct exposure to rain, extreme temperatures, and humidity. Use weather-resistant covers if necessary and ensure the loudspeakers are securely mounted to prevent accidents due to wind.

How do I clean the QSC HPR122i Loudspeaker without damaging it?

To clean the HPR122i, turn off and unplug the speaker. Use a soft, damp cloth to wipe the exterior surfaces. Avoid using any abrasive materials or solvents that could damage the finish. Carefully clean the grille and ensure no moisture enters the speaker components.

What should I do if the HPR122i emits a humming noise?

If the HPR122i emits a humming noise, check for ground loop issues by ensuring all connected equipment shares the same electrical ground. Use ground lift adapters if necessary. Inspect cables for damage and ensure they are properly connected. If the problem persists, consult a professional technician.

How can I safely transport the QSC HPR122i Loudspeaker?

To safely transport the HPR122i, use a padded speaker bag or case to protect it from physical damage. Ensure the speaker is securely fastened during transport to prevent movement. Handle the speaker gently and avoid stacking heavy objects on top of it.