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3. geNerAL DeScrIpTION
The TOA SR-D8-M and SR-D8-S are all-in-one Active Line Array Speaker Systems, each featuring a CobraNet
digital audio input (SR-D8-M only), digital signal processor, digital power amplifier, and speakers configured in
a line array. Precise control of the speaker’s vertical directivity and acoustic beamwidth makes it possible to
create fully optimized sound spaces in a wide range of locations.
All function settings can be controlled from a remote PC using the supplied SR-D8 PC Software. Equipped with
a primary audio input, the SR-D8-M transmits the audio signal to the secondary SR-D8-S via the SR-D8-M’s
dedicated local link. The local link allows up to 3 SR-D8-S speaker units to be connected in series to one SR-
D8-M, permitting a line array of up to 4 connected speakers (hereinafter, a line array speaker system consisting
of one or more speakers is referred to as “stack”) to be configured. In a complete system, up to 4 stacks can be
controlled, making it possible to build systems consisting of up to 16 speakers.
4. FeATUreS
• Variable beam line array speaker unit equipped with 8 10 cm low-frequency woofers, 24 small high-frequency
tweeters and an 8-channel 30 W (4 Ω output) digital power amplifier.
• Close vertical arrangement of the sound source speaker units creates a continuously linear sound source for
a uniform sound field with less distance attenuation.
• A built-in signal processor controls the number of beams (a maximum of 2 beams per stack), beam angle
(vertical directional angle) and beamwidth.
• Since the vertical coverage area can be set and the sound directed only to required areas, sound radiation to
unnecessary areas is minimized to significantly reduce reverberation and reflection.
• Optimal sound fields can be created even in locations that restrict optimal speaker mounting angle, position
and height.
• With two beams of output, a wide coverage area can be set to extend across long distances. Configuring a
multi-unit array makes more precise settings possible.
• A sound level distribution simulation function allows coverage areas to be set while visually monitoring them.
• LAN connection permits PC controls using the supplied SR-D8 PC Software.
• The SR-D8 system’s maximum configuration is 4 stacks (1 stack = 1 SR-D8-M unit + 3 SR-D8-S units), and
up to 16 speakers can be controlled in synchronization.
• CobraNet ensures high-quality sound transmission.
Note: CobraNet is a trademark of Cirrus Logic Inc. .
