Cinema Loudspeaker System
• 3-way selectable, bi or tri-amplified screen channel system
• MH-1075 provides increased high-frequency output
• LF-4115 is constructed of MDF and is heavily braced
• Low-distortion waveguides provide highly articulate dialogue
• Shallow depth (20") facilitates installation
Developed specifically for the unique requirements
of professional motion picture playback, the SC-413H
Nominal Coverage
90° horizontal x +20 to -30° vertical
Frequency Range
33 – 16 kHz (-6 dB)
Crossover Frequency
250 and 1700 Hz, 24 dB per octave
screen channel loudspeaker system comprised of two
main units—the MH-1075 mid-high frequency system
and the LF-4115 low-frequency system.
Sensitivity 1 watt /1 meter, 93.5 dB
half space
extends QSC’s commitment to the cinema market. As
a member of the DCS Digital Cinema Speaker Series,
the SC-413H is a 3-way, selectable bi or tri-amplified
The MH-1075 mid-high system features a high
output, horn loaded 10" midrange cone driver and a
105 dB
MF 105 dB HF 107.5 dB
Maximum Input Power1
250 W RMS2 275 W RMS 80 W RMS
8 hours of 6 db crest factor
400 W RMS
IEC 268 noise spectrum
2 hours of 6 db crest factor 500 W RMS
pink noise, 50 Hz – 20 kHz,
AES method
350 W RMS
a passive crossover for bi-amp operation. Power
limiter circuitry protects the high-frequency driver
Recommended Amplifier Power 800 W RMS maximum
800 W RMS maximum
from overpowering. The MH-1075 provides extended
Recommended Processing
3" (63 mm) titanium diaphragm compression driver
mounted to an adjustable pan and tilt bracket. The
MH-1075 includes a driver protection network and
frequency coverage for the critical midrange band. 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 LF-4115 single 15" (381 mm) low-frequency
enclosure is designed specifically to address the
extended low-frequency response required for cinema
applications. The LF-4115 covers the frequency range
Subsonic filter below 30 Hz,
> 18 dB per octave
ConnectorsBarrier strip screw terminals
accept up to #10 AWG stranded wire
4th order LR crossover at 200 and 1700
Hz via QSC DCM or™
Barrier strip screw terminals
accept up to #10 AWG stranded wire
TransducersOne 15" (381mm) high efficiency, 10" high efficiency mid range,
extended bass woofer featuring a 1.5" (38mm) exit, 3" titanium
4" copper voice coil
diaphragm compression driver
EnclosureQuasi 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
from 35 Hz to 250 Hz.
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)
The SC-413H is designed for ease of installation.
Weight – Net
83 lb (38 kg)
85 lb (39 kg)
The MH-1075 components come pre-assembled to
System Weight
168 lb (77 kg)
Baffle Cut-Out
58.75" x 32"
reduce field assembly time. Three bolts are all that
are required to secure the MH-1075 to the top of the
LF-4115 enclosure.
1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.
2) Maximum input power tested in accordance with IEC 268-5 recommendations, 200 Hz – 2 kHz band limiting, 6 dB signal crest factor.
551 mm
516 mm
762 mm
990 mm
1460 mm
102 mm
265 mm
910 mm
Specifications subject to change without notice.
QSC, the QSC logo and are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark office and other countries.
All other trademarks are the property of their respective owners. Patents may apply or be pending.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
SC-413H Spec Sheet – 06/20/08
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