Toa P-1812 - Manual (Page 9)

9
8. CONTROL SETTING
Output levels are adjustable with the Master Volume Control. For music play or announcements, adjust the
Control so that the red indicator doesn't light. Note that the sound quality is downgraded when the red
indicator remains lit.
To prevent the accidental change of the setting of Master Volume Control, remove its knob after setting it to
the desired position and attach the optional YA-920 Volume Control Cover instead.
YA-920 (optional)
Volume control knob
9. DIMENSIONAL DIAGRAM
107.7
88.4
Unit: mm
367 420
326.5 18.5