I recently obtained a Logitech Z-640 Dolby Digital 5.1 Surround Sound System and quickly set out to connect it to my Xbox (I do have the Advanced AV pack). The problem comes with the fact that the only way that the Logitech Z-640 can recieve true Dolby 5.1 Surround Sound is through 3, 3.5mm jacks(the kind used on computer sound cards and headphones), and the Xbox uses an optical connection. How can I convert the optical signal into 3, 3.5mm mini-phone jacks for use with my speakers?
Wow... I feel like a twit... the reason that it doesnt accept digital optical of digital coaxial is because the speakers are freakin ANALOG. They simply didnt have a digital decoder. I returned them and am now ordering Logitech Z680s which come with a reciever.