So I've gained before ca 1Week my sound system Wavemaster.
Have already humming of a soft part in the reviews here.
Nevertheless, I decided for the system. When I had it connected, I've also heard the hum.
However, you can hear it "only" if you can not play music and boxing has connected to a notebook (because the laptop is very quiet).
Thus, I am summarily decided to pursue the issue.
I do not know whether the other owners are just numb or the problem does not exist in all of boxing!
So the sound is coming from the subwoofer, there sits a small Travo in a metal jacket. This Travo vibrates inside the metal jacket and sets so the plate and the screws are connected to the timber to vibrate.
After a few tips on the Internet, I then hot glue used instead of epoxy resin; S to consolidate the Travo in the sheet. Then I got to the metal jacket cable ties secured and this strongly attracted.
The whole again screwed to the subwoofer and everything was quiet; D.
And all it cost me a half a day and I usually something I can not touch them only give 4stars.
Nevertheless, I wanted to not give back because I've used them equal and sets them apart from the hum,
have a very good sound, a regulator for the volume, great price and not soo bad look :).