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Question:

Yamaha HS50m Speakers making hissing noise when only connected to power cable?

I have just bought a pair of Yamaha HS50m monitors, connected only the power cable, switched them both on, and they are both making a noticeable constant hissing noise?Is this normal? Should this happen?Is it because I have not yet connected them to my interface or any other device?I am worried I have purchased a dodgy pair and would be grateful for any info.many thanks

Answer:

You might have a short somewhere.
Almost all powered studio monitors have some hiss if you have the input level turned all the way up - this is normal.

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