Toa VM-3000 Series - Manual (Page 127)

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VM-3240VA/3360VA/3240E/3360E
Speaker
R
SP N
VM-3240VA/3360VA/3240E/3360E
Speaker
Attenuator: AT-603P, etc.
14.8.1. Speaker connection
14.8.2. External attenuator connection (3-wire system)
14.8. Power Amplifier and Speaker Connections
Note
When initializing the surveillance settings, the total speaker wattage per line should be 20 W (500 Ω) or more.
Lighter speaker load may cause false detection.