High-pitched noise sound coming from the outputs of the BluBOX - what's this all about?
If a high-frequency noise can be heard at both outputs (BALANCED MIC OUT and LINE OUT) of the BluBOX, this is due to an unsuitable power supply unit. Here are the correct specifications for powering the BluBOX .
Tip:
The BOSS PSA power supplies (PSA-230S) or the Harman/Digitech PS0913DC usually work without any problems.
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| BOSS PSA-230S | PS0913DC |