QSC HF-75BX1 Handleiding

QSC Speaker HF-75BX1

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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
2
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
INPUT
terminals. Observe proper polarity; the amplifier’s
+
signal to the
HF-75BX1 or HF-75BX2
+ INPUT
, the amplifier’s
-
signal to the HF-75BX1 or HF-75BX2
-
INPUT
. Use the largest wire size and shortest wire length for
the application.
HF OUT Terminals
The
HF OUT
terminals are factory-connected to the compression driver. These terminals should
ONLY
be connected to the HF-75BX1 or HF-75BX2 com-
pression driver. Observe proper polarity; the
+ HF OUT
signal to the compression driver’s
+
input, the
-
HF OUT
signal 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
OUT
terminals 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 OUT
signal to the low frequency loudspeaker’s
+
input, the
-
LF OUT
signal to the low
frequency loudspeaker’s
-
input.
Compression Driver
Amplifier
HF OUT connection
terminals. Connect to
compression driver.
HF-75BX1 or
HF-75BX2 INPUT
connection terminals
LF OUT connection
terminals. Connect to
LF-3115 or LF 3215
loudspeaker INPUT
terminals.
To LF-3115 or LF-3215
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.
3
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 for vertical plane adjustments. The hori-(50° total, adjustable mount provides
zontal 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 (6mm2) 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 sup-
plied 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

Product specificaties

Merk: QSC
Categorie: Speaker
Model: HF-75BX1

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