SC-322 Cinema Loudspeaker System

Developed specifically for the unique requirements of professional motion picture playback, the SC-322 extends QSC's commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-322 is a two-way, bi-amplified screen channel loudspeaker system comprised of two main units - the HF-63 high-frequency system and the LF-3215 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-3215 dual 15" (381mm) low-frequency enclosure is designed specifically to address the extended low-frequency response required for cinema applications.

The LF-3215 covers the frequency range from 35 Hertz to 1000 Hertz, depending upon the high-frequency system requirements. 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-322 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-3215 enclosure.

FEATURES

Two-way, bi-amplified screen channel system
HF-63 provides 90° horizontal by +20° to -30° vertical coverage
LF-3215 is constructed of MDF and features single woofer chambers
Low-distortion waveguide provides highly articulate dialogue
Shallow depth (20") facilitates installation

DCS SERIES

All DCS Loudspeakers
2-way Screen Channel Systems
DCS SC-312
DCS SC-312X
DCS SC-412
DCS SC-322
DCS SC-322X
DCS SC-422
3-way Screen Channel Systems
High Power 3-way Screen Channel Systems
4-way Screen Channel Systems
Surround Loudspeakers
Subwoofers

DOCUMENTS

SC-322 Specifications (PDF 403K)
SC-322 User Manual (PDF 3.5MB)

HI-RES IMAGE

SC-322

CAD DRAWINGS

SC-322 (DXF, zipped 125K)
HF-63 (DXF, zipped 115K)
LF-3215 (DXF, zipped 36K)

RELATED PRODUCTS

DCA Series 2-Channel Amplifiers
DCA Series 4-Channel Amplifiers
DCM Digital Cinema Monitor

RoHS Compliant

SPECIFICATIONS	SC322
Nominal Coverage	90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB)	32 Hz - 16 kHz
Crossover Frequency	1000 Hz, 24 dB per octave
	LF-3215	HF-63
Impedance	4 ohms	8 ohms
Sensitivity 1 watt/1 meter, half space	98.5 dB	107.5 dB
Maximum Input Power ¹ (8 hours of 6 dB crest factor IEC 268 noise spectrum) (2 hours of 6 dB crest factor pinknoise, 50 Hz - 20 kHz, AES method) Recommended Amplifier Power	600 watts RMS 800 watts RMS 1200 watts RMS maximum	40 watts RMS 60 watts RMS 100 watts RMS maximum
Recommended Processing	Subsonic filter below 30 Hz, >18 dB per octave	4th order LR crossover at 1000 Hz
Connectors	Barrier strip screw terminals accept up to #10 AWG stranded wire	Barrier strip screw terminals accept up to #10 AWG stranded wire
Transducers	Two 15" (381mm) high efficiency, extended bass woofers featuring 3" copper voice coils	1.5" (38mm) exit, 2.5" titanium diaphragm compression driver
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	30" wide x 36" high x 20.3" deep (762mm x 910mm x 516mm)	30" wide x 16" high x 20" deep (762mm x 406mm x 508mm)
Net Weight	172 lbs (78 kg)	40 lbs (18.4 kg)
System Weight	212 lbs (96.4 kg)
Baffle Cut-Out	53" 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.

Specifications subject to change without notice.