QSC SC-312 Käyttöohje
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Developed specifically for the unique requirements
of professional motion picture playback, the SC-312
extends QSC’s commitment to the cinema market. As
a member of the DCS Digital Cinema Speaker Series,
the SC-312 is a two-way, bi-amplified screen channel
loudspeaker system comprised of two main units—the
HF-63 high frequency system and the LF-3115 low-
frequency system.
The HF-63 high-frequency system features a 2.5 "
(63mm) titanium diaphragm compression driver
mounted on a custom designed high frequency
cinema horn with an adjustable pan and tilt bracket.
The HF-63 includes a driver protection and equalization
network. DC blocking capacitors protect against DC or
low-frequency signals that would likely destroy an
unprotected driver. Power limiter circuitry protects the
driver from overpowering and a response correction
filter smoothes the frequency response of the horn/
driver combination. The driver and equalization
network provides for more reliable operation, ensuring
the show will go on.
The LF-3115 15 (381mm) low-frequency enclosure "
is designed specifically to address the extended low-
frequency response required for cinema applications.
The LF-3115 covers the frequency range from
35 Hz to 1000 Hz, depending upon the high-
frequency system requirements.
The SC-312 is designed for ease of installation.
The HF-63 components come pre-assembled to
reduce field assembly time. Three bolts are all that
are required to secure the HF-63 to the top of the
LF-3115 enclosure.
SC-312
Cinema Loudspeaker System
Specifications SC-312
Nominal Coverage 90° horizontal x +20 to -30° vertical
Frequency Range 33 Hz - 16 kHz (-6 dB)
Crossover Frequency 1000 Hz, 24 dB per octave
LF-3115 HF-63
Impedance 8 8Ω Ω
Sensitivity 1 watt /1 meter, 95.5 dB 107.5 dB
half space
Maximum Input Power1
8 hours of 6 db crest factor 300 W RMS 40 W RMS
IEC 268 noise spectrum
2 hours of 6 db crest factor 400 W RMS 60 W RMS
pinknoise, 50 Hz - 20 kHz,
AES method
Recommended Amplifier Power 600 W RMS maximum 100 W RMS maximum
Recommended Processing Subsonic filter below 30 Hz, 4th order LR crossover at 1000 Hz
> 18 dB per octave
Connectors Barrier strip screw terminals Barrier strip screw terminals
accept up to #10 AWG stranded accept up to #10 AWG stranded
wire, four terminals; two inputs wire, four terminals; two inputs
and two parallel outputs and two parallel outputs
Transducers One 15" (381mm) high efficiency, 1.5" (38mm) exit, 2.5" titanium
extended bass woofer featuring a diaphragm compression driver
3" copper voice coil
Enclosure Quasi B4 alignment, ported Tilt/Pan Bracket
enclosure with fully flared ports, ±10° vertical tilt
symmetrical port design, tuned to ±10° horizontal pan
36 Hz, constructed of MDF and
heavily braced. Features vandal
resistant woofer mounting bolts
Dimensions (HWD) 18.5" x 30" x 20.3" 16" x 30" x 20"
(470 mm x 762 mm x 516 mm) (406 mm x 762 mm x 508 mm)
Weight - Net 83 lbs (38 kg) 40 lbs (18.4 kg)
System Weight 123 lbs (56.4 kg)
Baffle Cut-Out 35.5" x 32"
1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz - 20 kHz band limiting, 6 dB signal crest factor.
Features
• Two-way, bi-amplified screen channel system
• SC-312 provides 90° horizontal by +20° to -30° vertical coverage
• Low distortion waveguide provides highly articulate dialogue
• Shallow depth (20") facilitates installation
SC-312
Dimensions
qscaudio.com
Specifications subject to change without notice.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
SC-312 Spec Sheet - 02/22/06
Top
Side
21.53"
546.9 mm
20.25"
514.4 mm
30"
762 mm
Front
15.46"
392.6 mm
33.83"
859.3 mm
18.38"
466.8 mm
9.7"
246.4 mm
4"
101.6 mm
20.25"
514.4 mm
*TD-000149-00*
Cinema Loudspeaker Systems User Manual
HF-63 High Frequency Component
Introduction
The HF-63 is the high frequency component of two-way, biamplified screen
channel loudspeaker systems for high performance cinema applications. It
was designed to operate with and be directly mounted on QSC’s LF-3115 or
LF-3215 cinema woofer.
The HF-63 high-frequency system features a large format, 2.5” (63.5mm)
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 provid-
ing highly articulate dialogue without coloration associated with conven-
tional horn loudspeakers.
The HF-63 includes a driver protection and equalization network to assure
reliable operation. DC blocking capacitors protect against DC or low-fre-
quency signals that could damage an unprotected driver. Power limiter cir-
cuitry protects the driver from over-powering and a response correction filter
smoothes the frequency response of the horn/driver combination. Outboard
processing is required, however, as the response correction filter is not a
crossover.
The HF-63 components come pre-assembled to reduce field assembly time.
Three bolts are all that are required to secure the HF-63 to the top of a QSC
low frequency enclosure.
Mounting
Refer to the illustration for mounting information. The HF-63 attaches to the
top of the LF-3115 or LF-3215 with three 5/16-18 bolts, 0.75” 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 horizon-
tal 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, Inc. Refer all servicing to qualified personnel. Ser-
vicing 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, cab-
inets, 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, profes-
sional engineer when any doubt or questions arise regarding
a physical equipment installation.
TD-000170-00 rev.C
© Copyright 2004, QSC Audio Products, Inc.
QSC® is a registered trademark of QSC Audio Products, Inc.
“QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office
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
Tuotetiedot
| Merkki: | QSC |
| Kategoria: | Kaiutin |
| Malli: | SC-312 |
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