HF-75BX2 - Speaker QSC - Free user manual and instructions

Product Type	High-frequency component for cinema systems, used with LF-3115 or LF-3215 subwoofer
Brand	QSC
Model	HF-75BX2
Dimensions (W x H x D)	762 mm x 406 mm x 508 mm
Net weight	11,8 kg
Gross weight	16,3 kg
Nominal impedance	4 ohms (with LF-3215) / 8 ohms (with LF-3115)
Maximum input power	300 W (with LF-3215) / 150 W (with LF-3115)
Frequency response	1300 Hz to 16000 Hz (-6 dB)
Nominal coverage	90° horizontal x 50° vertical (adjustable from +15° to -35°)
Passive crossover frequency	1300 Hz
Sensitivity	97,5 dB (with LF-3215) / 95 dB (with LF-3115)
Maximum sound level	126 dB (with LF-3215) / 123 dB (with LF-3115)
Transducer	Titanium diaphragm compression driver, 76.2 mm voice coil, 35 mm output
Connectors	6-pole barrier strip (2 inputs, 2 HF outputs, 2 LF outputs) accepting cable up to #10 AWG
Mounting	3 M8 x 20 mm bolts for mounting on LF-3115 or LF-3215 subwoofer
Key features	Clear dialogue without coloration, wide coverage, quick installation with pre-assembly, horizontal and vertical panning adjustment
Maintenance and cleaning	Clean with a soft dry cloth. Check hardware regularly. Do not use abrasive products.
Safety	Inspect all equipment before mounting. Use only specified fasteners. Never exceed load limits. Call a qualified technician.
Warranty	3-year limited (USA), parts and labor under conditions. See manual for details.

Frequently Asked Questions - HF-75BX2 QSC

How to install the HF-75BX2 on the LF-3215 subwoofer?

Place the HF-75BX2 on top of the LF-3215. Secure it using the three M8 x 20 mm bolts with pre-installed lock washers on the subwoofer. Apply thread grease to prevent loosening. Orient the horn in the horizontal plane before tightening, then adjust vertical tilt via the adjustable bracket.

Which cables to connect to the INPUT terminals?

Use stranded speaker cables up to #10 AWG (5.3 mm²). Connect the amplifier signal: positive (+) to the + INPUT terminal, negative (-) to the - INPUT terminal. Keep cables as short and as large gauge as possible.

How to connect the compression driver?

The HF OUT terminals are pre-wired from the factory to the compression driver. Use them only for this purpose. Observe polarity: + HF OUT to + of the driver, - HF OUT to - of the driver.

Can I use the HF-75BX2 with other subwoofers than the LF-3215?

The HF-75BX2 is specifically designed for the QSC LF-3215. The passive crossover and impedance are optimized for this subwoofer. Use with another model could degrade performance or damage equipment.

How to adjust the horizontal and vertical coverage?

The horizontal coverage is fixed at 90°. To orient it, rotate the assembly before tightening the bolts. The vertical coverage is adjustable from +15° to -35° (50° total) via the adjustable bracket located between the horn and the subwoofer.

What is the recommended maximum power?

With the LF-3215, the maximum input power is 300 W (pink noise, 2 hours, 6 dB crest factor). With the LF-3115, it is 150 W. Do not exceed these values to avoid damage.

What to do in case of damage or malfunction?

Cut power and inspect connections and hardware. If the problem persists, contact a qualified technician. For warranty repair, return the unit to the factory or an authorized center with proof of purchase.

How to clean the loudspeaker?

Use a soft dry cloth to dust. Avoid chemical or abrasive products. Regularly check that bolts are tight. If the horn is dirty, blow compressed air gently.

What are the warranty conditions?

QSC offers a 3-year limited warranty against manufacturing and material defects, valid in the United States. It does not cover damage due to misuse, incorrect installation, or accident. Visit www.qscaudio.com for the latest version.

Can I replace the compression driver myself?

Only qualified personnel should perform repairs. Any unauthorized service voids the warranty. If the driver is defective, contact QSC customer service or an authorized center.

USER MANUAL HF-75BX2 QSC

Cinema Loudspeaker Systems User Manual

HF-75BX1 and HF-75BX2

High Frequency Component

Introduction

The HF-75BX1 and HF-75BX2 are the high frequency components of full-range, two-way screen channel loudspeaker systems for high performance cinema applications. The HF-75BX1 is designed specifically for use with QSC's LF-3115 low frequency loudspeaker and the HF-75BX2 for the LF-3215 loudspeaker.

The HF-75BX1/X2 high-frequency system features a large format, 3.0" (76.2mm) voice coil, titanium diaphragm compression driver mounted on a custom designed high-frequency cinema horn with an adjustable pan and tilt bracket. The horn features broad horizontal and vertical coverage angles to ensure coverage of every seat in the auditorium. The horn is a low-distortion waveguide providing highly articulate dialogue without coloration associated with conventional horn loudspeakers. Equipped with a passive crossover providing tailored output for the LF-3115 or LF-3215, no additional signal processing is required.

The HF-75BX1/X2 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the HF-75BX1/X2 to the top of a QSC low frequency loudspeaker. Threaded inserts in the LF enclosures and matching punched hole pattern in the HF-75BX1/X2 make mounting to the low frequency enclosure simple.

Mounting

Refer to the illustration for mounting information. The HF-75BX1/X2 attaches to the top of the LF-3115 or LF-3215 with three M8, 20mm long, with lock washers. This hardware ships installed on the low frequency cabinet. We recommend the use of serviceable thread locking compound when installing the bolts to prevent loosening due to vibration. Aim the horn in the horizontal plane (pan) before tightening. Adjust the vertical tilt with the bracket adjustment.

Install in accordance with QSC Audio Product's instructions and a licensed, professional engineer. Only use attachments, mounts, accessories, or brackets specified by QSC Audio Products, LLC. Refer all servicing to qualified personnel. Servicing is required when the apparatus has been damaged in any way.

WARNING! Before placing, installing, rigging, or suspending any speaker product, inspect all hardware, suspension, cabinets, transducers, brackets and associated equipment for damage. Any missing, corroded, deformed or non-load rated component could significantly reduce the strength of the installation, placement, or array. Any such condition severely reduces the safety of the installation and should be immediately corrected. Use only hardware which is rated for the loading conditions of the installation and any possible short-term unexpected overloading. Never exceed the rating of the hardware or equipment. Consult a licensed, professional engineer when any doubt or questions arise regarding a physical equipment installation.

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© Copyright 2010, QSC Audio Products, LLC
QSC® is a registered trademark of QSC Audio Products, LLC
"QSC" and the QSC logo are registered with the U.S. Patent and Trademark Office

Connections

The HF-75BX1/X2 has barrier strip screw terminals that accept up to #10 AWG (6mm ^2 ) stranded loudspeaker wire.

INPUT Terminals

Connect the amplifier's full range output signal to the HF-75BX1 or HF-75BX2 INPUTTerminals. Observe proper polarity; the amplifier's +signal to the HF-75BX1 or HF-75BX2 + INPU; The amplifier's -signal to the HF-75BX1 or HF-75BX2 -INPUTUse the largest wire size and shortest wire length for the application.

HF OUT Terminals

The HF OUTerminals are factory-connected to the compression driver. These terminals should ONLY be connected to the HF-75BX1 or HF-75BX2 compression driver. Observe proper polarity: the + HF OUTSignal to the compression driver's + input, the - HF OUTSignal to the compression driver's - input.

LF OUT Terminals

The HF-75BX1 is designed specifically for use with QSC's LF-3115 low frequency loudspeaker and the HF-75BX2 for the LF-3215 loudspeaker. The LF OUTterminals are factory-terminated to lead wires with spade-lugs. These should ONLY be connected to QSC's model LF-3115 or model LF-3215 low frequency loudspeaker. Observe proper polarity; connect the + LF OUTSignal to the low frequency loudspeaker's +input, the - LF OUTSignal to the low frequency loudspeaker's - input.

HF-75BX1 and HF-75BX2 Specifications (subject to change without notice)

Frequency Range: 1,300 - 16,000 Hz (-6 dB)

Nominal Coverage:

90° horizontal X +15 to -35° vertical (50° total, adjustable mount provides for vertical plane adjustments. The horizontal plane can be adjusted by altering mounting position on the low frequency enclosure before tightening bolts.

DI: 9.0 dB (600 to 16,000 Hertz average)

Q: 8.0 (600 to 16,000 Hertz average)

SPL (peak): HF-75BX1 with LF-3115: 123 dB

HF-75BX2 with LF-3215: 126 dB

Impedance: HF-75BX1 with LF-3115: 8 Ohms nominal

HF-75BX2 with LF-3215: 4 Ohms nominal

Maximum Input Power: HF-75BX1 with LF-3115: 150 W

(2 hours of 6 dB crest factor HF-75BX2 with LF-3215: 300 W

pink noise, 50 Hz – 20 kHz,

AES method)

Sensitivity: HF-75BX1 with LF-3115: 95.0 dB

HF-75BX2 with LF-3215: 97.5 dB

Crossover Frequency: 1,300 Hz

Connectors: Barrier strip screw terminals accept up to #10 AWG (6mm

^2) stranded wire. Six terminals: Two full-range input ter-

minals, two HF OUT terminals (factory wired to compression driver), and two LF OUT terminals with factory supplied wiring for connection to QSC LF-3115 or LF-3215 low frequency loudspeaker.

Transducers:

1.4" (35mm) exit, 3.0" (76mm) voice coil, titanium diaphragm compression driver

Mounting Hardware:

Attaches to top of the LF-3115 or LF-3215 low frequency cabinet using three M8, 20mm long bolts.

Size:

30" wide X 16" high X 20" deep (762mm X 406mm X 508mm)

Weight:

36 lbs. (shipping), 26 lbs. (net), 16.3/11.8 kilograms

Warranty (USA only; other countries, see your dealer or distributor)

Disclaimer

QSC Audio Products, LLC is not liable for any damage to amplifiers, or any other equipment that is caused by negligence or improper installation and/or use of this loudspeaker product.

QSC Audio Products 3 Year Limited Warranty

QSC Audio Products, LLC ("QSC") guarantees its products to be free from defective material and / or workmanship for a period of three (3) years from date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via prepaid transportation with a copy of proof of purchase (i.e., sales receipt). This warranty provides that the examination of the return product must indicate, in our judgment, a manufacturing defect. This warranty does not extend to any product which has been subjected to misuse, neglect, accident, improper installation, or where the date code has been removed or defaced. QSC shall not be liable for incidental and/or consequential damages. This warranty gives you specific legal rights. This limited warranty is freely transferable during the term of the warranty period.

Customer may have additional rights, which vary from state to state.

In the event that this product was manufactured for export and sale outside of the United States or its territories, then this limited warranty shall not apply. Removal of the serial number on this product, or purchase of this product from an unauthorized dealer, will void this limited warranty. Periodically, this warranty is updated. To obtain the most recent version of QSC's warranty statement, please visit www.qscaudio.com. Contact us at 800-854-4079 or visit our website at www.qscaudio.com.

Contacting QSC Audio Products

Mailing address: QSC Audio Products, LLC

1675 MacArthur Boulevard

Costa Mesa, CA 92626-1468 USA

Telephone Numbers:

Main Number [phone]

Sales & Marketing [phone] or toll free (USA only) [phone]

Customer Service(714) 957-7150 or toll free (USA only) [phone]

Facsimile Numbers:

Sales & Marketing Fax[phone]

Customer Service Fax[phone]

World Wide Web:www.qscaudio.com

E-mail:[e-mail]

[e-mail]

QSC Audio Products, LLC, 1675 MacArthur Boulevard, Costa Mesa, California 92626 USA ©2004, 2005 "QSC" and the QSC logo are registered with the U.S. Patent and Trademark Office.

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World Wide Web:www.qscaudio.com

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© Copyright 2010 QSC Audio Products, LLC

Adresse postale : QSC Audio Products, LLC

1675 MacArthur Boulevard

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QSC Audio Products, LLC 1675 MacArthur Boulevard Costa Mesa, California 92626 USA

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©版权 2010 QSC Audio Products, LLC

QSC®是 QSC Audio Products, LLC 的注册商标

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