New memberUsername: Timeslice
Post Number: 1
I have a 5.1 Bose Acoustimass III system fed from a Yamaha surround amp and the Sub has a constant hum (the level of which is affected by the sub/lfe knobs on the sub unit in case that helps). The hum is also still present when the feed to it is pulled. I have read info suggesting that this is a known issue in this model and maybe fixed in later revisions.
Does anyone know what I might be able to do to fix it, am fairly happy doing mods if necessary. The hum has been present since bought approx. 5 years ago but was never dealt with previously.
Thanks in Advance.
Silver MemberUsername: Vm8444
Post Number: 426
You may want to use a step down connector to plug in wall.
From 3 to 2
Sounds like a ground loop problem which could take loads of time to trace.
Some stores sell them