I have been an Onkyo TX 605 operated with a Harman-Kardon HKTS 11 system. Due to the purchase of a new TV (Samsung 55 "3D TV) I wanted to upgrade the rest. First, I bought two Canton GLE 490.2 tower speaker. To this end, the center of the Harman Kardon system fitted sound no more. Looking for a new Center I then became aware of the obvious but Canton Center. It fits seamlessly the sound of the two Fronts and harmonises perfectly with the subwoofer and the surround and surround back LS of Harman-Kardon. Voices sound from the Center saehr course and also as a "distribution unit" between the Canton 490.2 he does a good job. The result is overall a very broad and even deep soundstage.