QSC DCS-SC-443C Spec sheet

SC-443C

Cinema Loudspeaker System

SC-443C

Features

• 3-way selectable, bi or

tri- amplified screen channel

system

• MH-1075C provides 90°

horizontal by +20° to -30°

vertical coverage

• LF-4215 is constructed of

MDF and features single woofer chambers

• 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-443C extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker

Series, the SC-443C is a 3-way, selectable bi or tri-amplified screen channel loudspeaker system comprised of three main units—the

MH-1075C high-frequency system and dual

LF-4215 low-frequency systems.

The MH-1075C mid-high system features a high output, horn loaded 10” midrange cone driver and a 3” (75 mm) titanium diaphragm compression driver mounted to an adjustable pan and tilt bracket. The

MH-1075C 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-1075C 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-4215 dual 15” (381 mm) lowfrequency enclosures are designed specifically to address the extended lowfrequency response required for cinema applications. The dual LF-4215s cover the frequency range from 35 Hz to 250 Hz.

Close Coupled Woofers (CCW), with their tight spacing between woofers, improves coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs.

The SC-443C is designed for ease of installation. The MH-1075C components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the MH-1075C to the top of the LF-4215 enclosure.

SC-443C Details

Specifications

Nominal Coverage

Frequency Range

Crossover Frequency

90° horizontal x +20 to -30° vertical

32 Hz – 16 kHz (-6 dB)

250 and 1700 Hz, 24 dB per octave

(2) LF-4215

Impedance 4Ω each

Sensitivity 1 watt /1 meter, half space 102.5 dB

SC-443C

MH-1075C

8Ω

Bi-amp

106 dB

Tri-amp

MF 105 dB HF 107.5 dB

Maximum Input Power 1

8 hours of 6 dB crest factor IEC 268 noise spectrum

800 W RMS 250 W RMS passive mid-high

2 275 W RMS 80 W RMS

2 hours of 6 dB crest factor pink noise,

50 Hz – 20 kHz, AES method

1000 W RMS

Recommended Amplifier Power

Recommended Processing

Connectors

Transducers

Enclosure

Dimensions (HWD)

350 W RMS

1600 W RMS maximum 800 W RMS maximum

Subsonic filter below 30 Hz, > 18 dB per octave

Barrier strip screw terminals accept up to #10 AWG stranded wire

4th order LR crossover at 200 and 1700 Hz via QSC processor

Barrier strip screw terminals accept up to #10 AWG stranded wire

Four 15” (381mm) high efficiency, extended bass woofers featuring 4” copper voice coils

10” - high efficiency mid range, 1.5” (38mm) exit, 3” titanium diaphragm compression driver

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

72” x 30” x 20.3” (1820 mm x 762 mm x 516 mm) 39” x 30” x 20” (990 mm x 762 mm x 508 mm)

Weight – Net

System Weight

Baffle Cut-Out

344 lbs (156 kg) 85 lb (18.4 kg)

429 lb (195 kg)

111.6” x 32”

1) Maximum input power tested in accordance with IEC 60268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.

2) Maximum input power tested in accordance with IEC 60268-5 recommendations, 500 Hz – 2 kHz band limiting, 6 dB signal crest factor.

SC-443C Technical Drawing

Top

21.7"

551 mm

20.3"

516 mm

30"

762 mm

39"

990 mm

Side

111"

2810 mm

4"

102 mm

36"

910 mm

18.9"

480 mm

72"

1820 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-443C Spec Sheet 02/06/2013 please recycle