CyberData VoIP Loudspeaker Amplifier Part #010859 - Manual (Page 21)

Installing the VoIP Loudspeaker Amplifier
Loudspeaker Amplifier Setup
VoIP Loudspeaker Amplifier Operations Guide 930111F CyberData Corporation
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2.2.6 Adjust the Volume
To adjust the loudspeaker amplifier volume, turn the Volume dial ( Figure 2-11 ) on the loudspeaker
amplifier face.
Figure 2-11. Volume Control
Volume control