QSC HF-75BX1 Handleiding

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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 appli-

cations. 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 fea-

tures 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 loud-

speakers. 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 fre-

quency 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 tight-

ening. 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 instal-

lation 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 rat-

ing of the hardware or equipment. Consult a licensed, professional

engineer when any doubt or questions arise regarding a physical

equipment installation.

1675 MacArthur Blvd., Costa Mesa, CA, 92626 USA

Main Number (714) 754-6175 Sales & Marketing (714) 957-7100 or toll free (USA only) (800) 854-4079

Customer Service(714) 957-7150 or toll free (USA only) (800) 772-2834

30” (762 mm)

20” (508 mm)

16”

(406 mm)

*TD-000327-00*

TD-000327-00-B

© 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

Product specificaties