We have chosen to make our speakers flexible and equip them with several tuning options to allow for adjustment of the sound according to the room and your personal preference. This is obtained partly by changing the boundary frequency mechanically in order to better suit the specific rooms acoustic properties.
For example, on several of our models you can adjust the tweeter- and the bass level, and open or close the bass reflex ports. This makes it possible to vary the character to suit your preference, and of course to better suit the listening room, which is a vital part of your system.