Soft dB Opus Suite Building Acoustics Module Airborne Sound Isolation between Rooms ASTM E 336_ISO 140-4 - Manual (Page 31)

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Appendix 1: Concerto Hardware
Connections
4 Inputs
Mic
Stand
DC in
¼ 20
insert
Power-on
button
Second
Battery
2 Outputs USB
port
Right click Enter Arrow keys
Battery indicator
Headphone Jack Loudspeaker