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Dolby SA10 Surround Adapter
Specifications
The Dolby SA10 adapter upgrades
any existing 5.1 digital cinema sound system to three surround channels on
digital prints prepared with the Dolby Digital–Surround EX process. It is
easily installed in the booth between the existing cinema sound processor and
the power amplifiers.
In addition to
replaying the three surround channels, the SA10 uses three seven-band
equalizers operating in conjunction with tunable high- and low-frequency
shelves to ensure smooth surround-speaker response to the international
standard curve. Front-panel controls include a mode selector (5.1 or Dolby
Digital–Surround EX), signal-present channel indicators, and a backup
power supply selector. Rear-panel connections make it possible to select the
Dolby Digital–Surround EX mode remotely with automation systems.
Like all Dolby cinema sound products, the SA10
is fully supported by hundreds of factory-trained technicians worldwide,
on-call emergency assistance, and the most experienced distributor network in
the industry.
SPECIFICATIONS
Construction
Rack-mount chassis frame with plug-in modules accessible behind hinged front
panel.
Signal Connections
Standard screw-type terminal
blocks for audio signal inputs. Output audio signals and automation control
signal connection provided via 25-pin D-connectors.
Inputs:
Ls and Rs inputs, 10 kOhms nominal input impedance, 30 mV maximum input
sensitivity, with 300 mV operating level.
Outputs:
Output
impedance: 150 Ohms. Load greater than 600 Ohms. Maximum output level +8 dBu.
Typical operating level -18 dBu. Operating levels from 10 mV to 200 mV may be
accommodated.
Control Input:
Mode control provided via
25-pin female D-connector.
Surround Loudspeaker
Equalization
Equalizers for Left Surround, Center Surround, and Right
Surround speakers provide ±10 dB high- and low-frequency controls with
adjustable turnover frequency, plus seven adjustable ±8 dB narrow band
filters covering the range from 63 Hz to 2 kHz.
Distortion (any
channel)
1 kHz: typically <0.15% at Dolby level (50% modulation).
Dynamic Range
Typically 88 dB.
Dimensions
3-U rack-mount chassis. Faceplate: 133 mm x 483 mm (5.25"
x 19"). Maximum projection behind mounting surface: 308 mm (12.1"). Maximum
projection in front of mounting surface: 12.70 mm (0.50").
Weight
10.1 kg (22.3 lbs).
Power Requirements
Power supplied from two outboard transformers (one main, one emergency backup).
Normal supply: 24 VAC at 200 mA. Fuse requirements: one slow-blow fuse: 20 mm,
1.5A. Spare fuse provided.
Ambient Operating Temperature
Up
to 40° C.
Regulatory Notices
USA: This unit complies
with the limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. Europe: This product complies with the requirements of Low Voltage
Directive 73/23/EEC and EMC Directive 89/336/EEC and carries the CE marking
accordingly.
Buy one online
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