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SR-18 Cinema Surround Loudspeaker
Developed specifically for the unique requirements of professional motion picture playback, QSC extends its
commitment to the cinema market with the introduction of the SR-18 Cinema Surround Loudspeaker. As a member
of QSC's DCS Digital Cinema Speaker Series, the SR-18 offers high-power handling, excellent sensitivity,
and extended bass response in a very compact enclosure.
The SR-18 Cinema Surround Loudspeaker features a high-power, long-throw 8" low frequency transducer
coupled with a 1" titanium diaphragm compression driver. The system's plywood enclosure features a
15° down angle baffle and Array Optimized Tuning (AOT) for optimum frequency response. The
100-watt continuous power rating and sophisticated crossover provides absolute reliability.
The compact black enclosure with black grille blends into any theatre decor. A new quick mount
bracket design allows for fast, easy and secure installation. The loudspeaker half of the bracket
comes pre-installed on each SR-18. The quick mount wall bracket is purchased separately to allow
shipment to the job site ahead of the loudspeakers. A traditional U-bracket is also available in
lieu of the quick mount bracket system.
FEATURES
- Parallel outputs for feeding additional units
- 95° horizontal dispersion
- Quick mount bracket for fast, easy and secure installation
- High-power handling capability and rugged plywood enclosure optimized for digital soundtrack reproduction
- THX Approved
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DCS SERIES
DOCUMENTS
SR-18 Specifications (PDF 186K)
SR-18 User Manual (PDF 203K)
IMAGES
View hi-res Image
CAD DRAWINGS
SR-18 (DXF, zipped 352K)
QM-SW (DXF, zipped 47K)
QM-BW (DXF, zipped 84K)
YM-300 (DXF, zipped 20K)
ACCESSORIES
QM-SW, QM-BW User Manual (PDF 209K)
YM-300 Bracket User Manual (PDF 913K)
RELATED PRODUCTS
DCA Series 2-Channel Amplifiers
DCA Series 4-Channel Amplifiers
DCM Digital Cinema Monitor
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SPECIFICATIONS |
SR-18 |
Frequency Range 1
(-6dB, Half space)
(-10dB, Half space) |
40-20,000 Hz
36-20,000 Hz |
| Nominal Coverage |
95° horizontal x 85° vertical
(averaged from 1 kHz to 10 kHz, -6 dB) |
| Directivity Index |
7.5 dB |
| Q |
5.6 |
Maximum Output 2
Calculated Peak at rated power
Calculated Continuous |
118 dB
112 dB |
| Impedance |
8 ohms nominal |
Maximum Input Power 3
(100 hours of 6db crest factor
IEC 268 noise spectrum)
(2 hours of 6db crest factor pink
noise, 50 - 20,000 Hz, AES method)
Recommended Amplifier Power |
85 watts RMS
100 watts RMS
200 watts RMS maximum into 8 ohms |
| Sensitivity 1 watt/1 meter, half space |
92 dB
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| Crossover Frequency |
2.8 kHz |
| Recommended Processing |
Subsonic filter at 50 Hz as provided by QSC DCA amplifiers |
| Connectors |
Barrier strip screw terminals accept up to #10 AWG stranded wire |
| Transducers |
8" long throw low frequency transducer
1" titanium diaphragm compression driver on an CD horn |
| Enclosure |
Plywood, baffle angle is 15° downward |
| Dimensions |
12" W x 20.5"; H x 11.75" D (305 mm x 522 mm x 299 mm) |
| Weight |
24 lbs. (11 kg) |
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1 All frequency ranges specified refer to measured free field response (half space, 2pi).
2 Calculated SPL at 1m, (half space, 2pi), speaker operating at rated RMS power with pink noise within specified frequency range.
3 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.
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