Cinema Loudspeaker System SC-414 Features

SC-414
Cinema Loudspeaker System
SC-414
Features
•4-way selectable, tri or quadamplified screen channel
system
•Unique HF/VHF diaphragm
has less mass than traditional
diaphragms resulting in
exceptional dynamic range,
extended high frequency
response and lower distortion
•LF-4115 is constructed of MDF
and is heavily braced
•Low-distortion waveguides
provide highly articulate
dialogue
•Shallow depth (20”) facilitates
installation
•THX™ approved for
professional cinema
applications
Developed specifically for the unique
requirements of professional motion picture
playback, the SC-414 extends QSC’s
commitment to the cinema market. As a
member of the DCS Digital Cinema Speaker
Series, the SC-414 is a 4-way, selectable tri
or quad-amplified screen channel
loudspeaker system comprised of two main
units — the MHV-1090 mid-high-very highfrequency system and the LF-4115 lowfrequency system.
The MHV-1090 mid-high-very high system
features a high output, horn loaded 10”
midrange cone driver and a coaxial
neodymium high-frequency/very highfrequency compression driver. The MHV1090 includes a driver protection network
and a passive crossover for tri-amp
operation. The protection circuitry prevents
low-frequency signals from damaging the
high-frequency and very high-frequency
driver. A high power 10” cone driver allows
operation as low as 250 Hz and the
advanced phase plug coupling permits a
crossover point of up to 1800 Hz to the
high-frequency horn. This ensures that most
of the dialog range is reproduced by a single
element for unmatched intelligibility.
The coaxial neodymium high-frequency/very
high-frequency compression driver provides
a dramatic improvement in dynamic
response, clarity and transparency. The
annular high-frequency diaphragm covers the
frequency range between 1800 and 7000
Hz with a smooth, linear response. The large
diaphragm excursion of +/-0.8 mm results
in high output and increased power
handling. The very high-frequency driver
covers the frequency range from 7,000 to
22,000 Hz and eliminates the dome break
up of conventional drivers that can cause
resonance and harsh, metallic sound.
The LF-4115 single 15” (381 mm) lowfrequency enclosure is designed specifically
to address the extended low-frequency
response required for cinema applications.
The LF-4115 covers the frequency range
from 35 Hz to 250 Hz.
The SC-414 is designed for ease of
installation. The MHV-1090 components
come pre-assembled to reduce field
assembly time. Three bolts are all that are
required to secure the MHV-1090 to the top
of the LF-4115 enclosure.
SC-414 Details
Specifications
SC-414
Nominal Coverage
90° horizontal x +20 to -30° vertical
Frequency Range (-6 dB)
33Hz – 20 kHz
Active Crossover Frequencies
250, 1700 and 6000 Hz, 24 dB per octave
LF-4115
MHV-1090
Impedance
4Ω
MF: 8Ω HF: 8Ω VHF: 8Ω
Sensitivity 1 watt /1 meter,
half space
98.5 dB
Tri-amp
MF:105 dB
HF/VHF: 110 dB
Quad-amp
MF: 105 dB
HF: 110 dB
VHF: 110 dB
8 hours of 6 dB crest factor 400 W RMS
IEC 268 noise spectrum
MF: 275 W RMS
HF/VHF: 230 W RMS
MF: 275 W RMS
HF: 150 W RMS
VHF: 80 W RMS
2 hours of 6 dB crest factor 500 W RMS
pink noise, 50 Hz – 20 kHz, AES method
MF: 800 W RMS
HF/VHF: 500 W RMS maximum
Recommended
Amplifier Power
800 W RMS maximum
MF: 800 W RMS
HF: 500 W RMS
VHF: 300 W RMS maximum
Recommended Processing
Subsonic filter below 30 Hz,
>18 dB per octave
4th order LR crossover at 250, 1700 and 6000 Hz via QSC processor
Connectors
Barrier strip screw terminals accept up to #10 AWG stranded wire
Transducers
ne 15" (381mm) high efficiency, extended
O
bass woofer featuring a 4" copper voice coil
MF: 10" high-efficiency, horn-loaded cone with phase plug
HF/VHF: coaxial neodymium compression driver with 3.5" (90 mm) HF diaphragm and 1.75"
(44 mm) VHF diaphragm
Enclosure
Quasi B4 alignment, ported enclosure with fully
flared ports, symmetrical port design, tuned to
36 Hz, constructed of MDF and heavily braced.
Features vandal resistant woofer mounting
bolts
Tilt/Pan Bracket
±10° vertical tilt
±10° horizontal pan
Dimensions (HWD)
18.5" x 30" x 20.3"
(470 mm x 762 mm x 516 mm)
39" x 30" x 20"
(990 mm x 762 mm x 508 mm)
Weight – Net
83 lb (38 kg)
84 lb (38.5 kg)
Maximum Input Power1
System Weight
167 lb (76.5 kg)
Baffle Cut-Out
58.75" 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.
SC-414 Technical Drawing
Top
21.7"
551 mm
20.3"
516 mm
30"
762 mm
39"
990 mm
57.63"
1463.8 mm
Side
4"
102 mm
10.45"
265 mm
18.63"
473.2 mm
Front
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
© 2013 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent
and Trademark office and other countries.
SC-414 Spec Sheet 02/06/2013
please recycle