As my old speakers were gone, had ran new. I play my music from about 95% over the computer. Therefore, it should be slightly better sonically. The reviews on this Graet here have convinced me. I have not looked back. It is a powerful sound. The subwoofer does his job without the stupid, permanent bum bum, what I find enjoyable. It is absolutely not hear the hum. Although the plant is fully driven, no distortions can be heard. Bin fully to peace and can recommend the facility with a clear conscience. The 60 euro are well spent.