QSC Audio SC-413H User Manual

Features

• Three-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

SC-413H

Cinema Loudspeaker System

• Shallow depth (20

") facilitates installation

Developed specifically for the unique requirements
of professional motion picture playback, the SC-413H
extends QSC’s commitment to the cinema market. As
a member of the DCS Digital Cinema Speaker Series,
the SC-413H is a three-way, selectable bi or tri-amplified
screen channel loudspeaker system comprised of two
main units—the MH-1075 mid-high frequency system
and the LF-4115 low-frequency system.

The MH-1075 mid-high system features a high
output, horn loaded 10" midrange cone driver and
a 3" (63 mm) titanium diaphragm compression
driver mounted to an adjustable pan and tilt bracket.
The MH-1075 includes a driver protection network
and a passive crossover for bi-amp operation. Power
limiter circuitry protects the high-frequency driver
from overpowering. The MH-1075 provides extended
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
from 35 Hz to 250 Hz.

The SC-413H is designed for ease of installation.
The MH-1075 components come pre-assembled to
reduce field assembly time. Three bolts are all that
are required to secure the MH-1075 to the top of the
LF-4115 enclosure.

Specifications 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

LF-4115 MH-1075

Impedance 4Ω 8Ω

Sensitivity 1 watt /1 meter, 93.5 dB Bi-amp Tri-amp
half space 105 dB MF 105 dB HF 107.5 dB

Maximum Input Power

8 hours of 6 db crest factor 400 W RMS 250 W RMS2 275 W RMS 80 W RMS
IEC 268 noise spectrum

2 hours of 6 db crest factor 500 W RMS 350 W RMS
pink noise, 50 Hz - 20 kHz,
AES method

Recommended Amplifier Power 800 W RMS maximum 800 W RMS maximum

Recommended Processing Subsonic filter below 30 Hz, 4th order LR crossover at 200 and
> 18 dB per octave 1700 Hz via QSC DCM or QSControl.net

Connectors Barrier strip screw terminals Barrier strip screw terminals

Transducers One 15" (381mm) high efficiency, 10" high efficiency mid range,

Enclosure Quasi B4 alignment, ported Tilt/Pan Bracket

Dimensions (HWD) 18.5" x 30" x 20.3" 39" x 30" x 20"
(470 mm x 762 mm x 516 mm) (990 mm x 762 mm x 508 mm)

Weight - Net 83 lbs (38 kg) 85 lbs (39 kg)

System Weight 168 lbs (77 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.

2) Maximum input power tested in accordance with IEC 268-5 recommendations, 200 Hz - 2 kHz band limiting, 6 dB signal crest factor.

1

passive
mid-high

accept up to #10 AWG accept up to #10 AWG stranded wire
stranded wire

extended bass woofer featuring a 1.5" (38mm) exit, 3" titanium
4" copper voice coil diaphragm compression driver

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

SC-413H

Top

21.7"

551 mm

30"

762 mm

Dimensions

20.3"

516 mm

Front

Side

4"

102 mm

10.45"

265 mm

39"

990 mm

57.5"

1460 mm

18.5"

910 mm

Specifications subject to change without notice.

1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: [phone]

SC-413H Spec Sheet - 10/06/06

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