The reviews that testify turn negative from here: I do not know !!! Without the sound in edit system actually does not constitute a satisfactory result. In addition, the subwoofer is set also on bass. This factory setting is normal and all speakers that. Had previously Devil systems ca.für are to have from 150.00 euros. In smaller office I must not necessarily have ;-) I snacked a bit and played on Equilizer .... lo and behold, great highs and good bass (in center position !!!) Technically sound and volume for a system that I bought for under 30.00 euros ..... great !!! Visually and qualitatively quite dibasic. Volume by cable FB practically ..... strong buy recommendation.