Ultimately, it's about what you feel you want to improve more: clarity or bass response. It's a judgment call and folks will always disagree.

Audio Upgrade
 

Thank you, I've seen that now there is the mid tone speaker as well. I've decided to take blaupunkt as a final solution since I'm interested more in clarity then the bass. The BSW solution was only available in the US so I picked these. I'll provide pictures and impresions in a few days. By the way it's OD 162 series from blaup. Thank you again for your help