SY Electronics 2A-100W, User Manual, Page: 4 / 12

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Using the SY-2A-100W
Note:

Before turning on the amplifier, check that the MIC input mode switch and the
speaker MODE switch are both set correctly to ensure proper operation of the
amplifier and prevent damage to either the microphone or the speakers.

After turning on the amplifier, always allow a few seconds for it to complete its
start-up process before using the controls.

When the display shows PROTECT , immediately switch off the amplifier and
rectify the condition that caused the amplifier to enter its protection mode before
switching it back on.
MIC Switch
This switch provides three modes of operation:
1. 48V – for phantom powered condenser microphones
2. MIC – for dynamic or self-powered electret microphones
3. LINE – for any line level audio signal or pre-amplified (radio) microphones
Each of these settings can be wired for either the balanced or unbalanced input signals.
Figure 1 - Wiring Details for 48V Balanced Mode
Figure 2 - Wiring Details for 48V Unbalanced Mode