''Hissing'' from speakers....cause ?


Hi all,

Have replaced a Monarchy 33 pre with a Sim Celeste P5003.
I'm now experiencing a mild hissing sound from the speakers. Although it doesn't increase with volume, it's noticeable.
What could be the cause, and is it easily curable, if at all ?

Thanks, Mike
wrayman

Showing 1 response by eldartford

Tubes hiss. Everything else hums. Good equipment (in proper working condition) is inaudible.