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warning Dbtechnologies
Error Code -10dB
Output signal level indicator — lights when the output signal is around -10 dB than full power.
? What Causes This
Normal operation at moderate-high output levels.
✓ How to Fix It
This is a normal indicator. Adjust levels as needed for your application.
Source: page 2 of the official manual
From the manual
This error code appears in:
Dbtechnologies A4TI Professional 4 Channel Power Amplifier