Hi guys, I have recently bought a Denon AVRX6400H AV Receiver and a Dali Zensor 7 Floorstanding Speaker Package. Here is a list of the speaker hardware I got. 2x Dali Zensor 7 Floorstanding Speakers 4x Dali Zensor 3 speakers 1x Dali Zensor Vokal middle speaker 1x Dali E-12-F subwoofer It's a 7.1 setup i've created. I need to know what's the best crossover frequency setting etc for the subwoofer setting on the back of it and also what's best setting on the Amp for this subwoofer and also best setting on the Amp for the speakers I've got. Thanks for any help setting this up.