Speaker noise!

Am quite disappointed with these speakers. But let's start at the beginning ...
I had hanging on my PC any cheap powered speakers that now after 11 years of giving up their mind. Looking for new speakers I found this here, at the time of my purchase were no reviews available. Actually, I'm good to expect from Yamaha only in motorcycles, musical instruments and hi-fi. So I thought badly can not be sure.
When I then took into operation, I was quite disappointed. First Refferenzmusik belongs exactly where I know how it has to sound. Result: speakers deliver a lot of ups and a lot of bass to hear barely middle. If you listen to music then the pools are what sounds loudest from drums. That can not be so well. If you watched a movie so then roar the talks so that makes it no longer wanted.

But the worst part: The Speaker always give a faint noise of itself. From a certain volume which falls on not at all, but if you play at night or something so that is unbearable.

Sorry because I'm used to better from Yamaha.

I now have the Creative T20 bought and am finally satisfied. Good sound and no noise.