Behringer SU9920

Well, considering the price of this Ultramizer it´s really good! I would have given it 5 stars if not for one little thing... When powered up it makes a humming sound which can be really annoying and it seems that´s a common issue in various Behringer products. Powertransformers often make a low humming sound which doesn´t mean they´re faulty at all but when it´s installed so that it comes in contact with the chassis that low humming sound grows alot in the box! I think this is something that Behringer should take a look at. With very small changes I think this can be avoided. Now I didn´t send this back, instead I opened it up and fixed the issue from disturbingly high humming to almost totally quiet. BUT I absolutely do not recommend that you do this unless you´re sure about what you´re doing! Also I´m sure that this operation voids the warranty...

As I said, for the price you can´t go wrong with this one!