QSC SR-46 Specification Sheet

Features
• Parallel outputs for feeding additional units
• 90˚ horizontal dispersion
• QuickMount bracket for fast, easy and secure installation
• High-power handling capability and rugged plywood enclosure
optimized for digital soundtrack reproduction
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-46 Cinema Surround
Loudspeaker. As a member of QSC's DCS Digital
Cinema Speaker Series, the SR-46 offers high-power
handling, excellent sensitivity, and extended bass
response in a very compact enclosure.
The SR-46 Cinema Surround Loudspeaker features
four high-power, long-throw 6.5" low-frequency
transducers 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
300 watt continuous power rating and sophisticated
crossover provides absolute reliability.
A 50º controlled vertical coverage provides for a better
reach and more consistent sound pressure levels
across the audience area.
The compact black enclosure with black grille blends
into any theatre decor. A new QuickMount bracket
design allows for fast, easy and secure installation. The
loudspeaker half of the bracket comes pre-installed on
each SR-46. The QuickMount 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 QuickMount bracket system.

Specifications

1
Frequency Range
-6 dB half space
-10 dB half space
Nominal Coverage
Directivity Index
Q
2
Maximum Output
Calculated Peak at Rated Power
Calculated Continuous
Impedance
3
Maximum Input Power
100 hours of 6 db crest factor
IEC 268 noise spectrum
2 hours of 6 db crest factor
pink noise, 50 Hz – 20 kHz,
AES method
Recommended Amplifier Power
Sensitivity 1 watt /1 meter, half space
Crossover Frequency
Recommended Processing
Connectors
Transducers
Enclosure
Dimensions (HWD)
Weight – Net
1) All frequency ranges specified refer to measured free field response (half space, 2π).
2) Calculated SPL at 1m, (half space, 2π), 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.
SR-46
Cinema Surround Loudspeaker
50 Hz – 20 kHz
42 Hz – 20 Hz
90° horizontal x 50° vertical (averaged from 1 kHz to 10 kHz, -6 dB)
7.9 dB
6.2
125 dB
119 dB
8Ω nominal
250 W RMS
300 W RMS
600 W RMS maximum into 8Ω
95 dB
3 kHz
Subsonic filter at 50 Hz as provided by QSC DCA amplifiers
Barrier strip screw terminals accept up to #10 AWG stranded wire
4 x 6.5" long throw low-frequency transducers
1" titanium diaphragm compression driver on a CD horn
Plywood, baffle angle is 15° downward
24" x 14.3" x 13.25" (610 mm x 363 mm x 336 mm)
44 lb (20 kg)