My sound is ok when I play it in Music maker. After I have saved the file as MP3 or windows file the sound are wery bad. I am not changing anything in the options. Here is some example, wery bad bass: 
@Bthanse You use an ASIO driver inside Music Maker, right? Do you use an audio interface for playback with the same ASIO driver or do you use your mainboard audio chipset for playback? In the second case, it is likely that your version of Windows has some sound "enhancements" enabled that change the sound to make it sound "better". You need to configure your audio settings in Windows. If your mainboard has a Realtek audio chipset look at your settings in the Realtek HD Audio Manager.
Also @Bthanse you have to beaware that there are always going to be some sort of mastering to be needed some where on the timeline. Go back to the project and open it and find the track that has the bass you are mentioning and see if you can work with it just remember not to save it untill you are sure that it is what you want to hear oh and be sure to solo the object so that it will be the only instrument playing in the project good luck