[ashlar]

Sound System is kompletely build by my self (Speaker and 8CH Amp too) so i need many dsfilters for all my palyback

If you need upmixing for music, the relevant setting of Kodi should give you that. Put settings in Expert Mode and in Settings\System\Audio activate "Stereo upmix".

Its description reads "Select to enable upmixing of 2 channel audio to the number of audio channels specified by the channel configuration".
There's a setting called "Number of channels" where you can select a 5.0 configuration. If you select that and activate the above option, I think music should be upmixed.