Toa A-230 HV - Manual (Page 4)

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4.2. Rear
8. AC Power Cord
Connects to an AC power source.
9. DC Terminals
Connect to a DC power supply of 12V.
10. Output Terminals
Connect to speakers. When connecting
speakers, use only one of the speaker output
terminals, low or high impedance.
11. Terminal Cover
To avoid electric shock due to high voltage from
output terminals, replace the terminal cover after
connection completion.
12. AUX Input Terminals
–20 dBV (100 mV), 10 kΩ, unbalanced,
monaural RCA pin jacks. Accept external
equipment output signals. (Refer to Input
Connection for details.)
13. MIC 1, MIC 2 and MIC 3 Inputs
–60 dBV (1 mV), 600 Ω, unbalanced.
Because microphone input is unbalanced type,
use a single pole phone plug. (Refer to Input
Connection for details.)
14. Muting Level Control
Adjusts the background music level 0 – 30 dB to
be automatically reduced when priority function
is operated.
15. Ground Terminal
Connects to ground (earth) to avoid electric
shock.
0 dBV=1 V
5. MUTING FUNCTION
Mic 1 input is provided with a voice-activated muting function that overrides other Mic inputs 2 and 3, and AUX
input. (Factory default: –30 dB)
0 –30dB
MUTE ADJ
Remark: About Mute function.
• When the audio signal is input to Mic1, the mute circuit works promptly.
• When the signal disappears, it returns to the previous state after 3 seconds.