TOA Electronics A-9120DL Stereo Amplifier User Manual


 
8.1. General Description
Use the matrix mode when broadcasting BGM or paging calls to zoned areas in such facilities as civic centers,
universities, schools, restaurants, bars, and cruise ships.
Input signals are basically not mixed but distributed in the matrix mode.
Three operation methods are available in this mode; Normal matrix operation, 1-channel output operation (A-
9060S/9120S/9240SH only), and 2-channel output operation (BGM/Page operation) (A-9060DH/9120DH
only). (Refer to p. 36 "SELECTING OPERATION METHOD.")
8.1.1. Normal matrix operation
In the normal matrix operation method, multiple audio input signals can be simultaneously routed to multiple
outputs and in addition, paging calls assigned different priority levels can be initiated during BGM broadcast to
each zone.
The ducker function (refer to p. 28 "Glossary") also allows paging calls to be made without interrupting BGM
broadcasts to each zone.
A maximum of 32 settings related to broadcasts, such as broadcast sound source input channels, interrupt
broadcast output channels, BGM source input channels, and broadcast start methods, can be stored as Event
memory.
[Application example for a civic center]
26
8. DESCRIPTION OF MATRIX MODE
Two operation modes are made available to the
unit: Matrix mode and Mixer mode.
Be sure to select the matrix mode by the Mode
switch on the rear panel before using the unit.
(The mode switch is factory-preset to the mixer
mode.)
This manual describes the instructions on the unit set for the Matrix mode. When you use the unit
in the Mixer mode, please read the separate installation and operating instructions for the mixer
mode.
MODE
MIXERMATRIX
Mode switch
Room 1
TelephoneCD
1F corridors
Room 2
2F corridors Rest rooms
Room 3 Entrance hall
9000 series system
Important
Be sure to disconnect the power supply plug from the AC outlet when changing the mode.
Since the changes in mode will erase all setting contents, download the set files that need to be stored using
the supplied PC software.