Your Mac mini cranks out its video via DisplayPort and audio via a mini Toslink. Chances are your home entertainment system doesn't like either of those. It will, however, like the Kanex Mini DisplayPort Adapter, which can turn a DisplayPort video signal into a 1080p signal over HDMI, and will even integrate either digital or analog audio into the mix. It's USB powered, so there's no need for a clunky power adapter, and while $70 isn't particularly cheap for a chubby cable ($50 for the USB analog audio model), it's about the cleanest way to get your Mini pumping tunes and vids through your system.
Bring a true digital experience to your home theater with our fully digital Mini DisplayPort adapter that supports 1080p video and digital audio for Apple MacBook, MacBook Pro, Mac Mini, iMac.
With audio limitation from Mini Displayport they've combined Apple Mini Jack digital audio output with Mini DisplayPort digital video output into a single HDMI output solution to bring a true audio video experience with full HD 1080p video and full digital audio 5.1 support. Powered by USB so no external power source is needed.
Design for Apple Unibody 2009 Models. MacBook, MacBook Pro, Mac Mini, iMac
Supports Mini DisplayPort 1.1a input, USB 2.0, Apple Mini Jack Optical Audio Input
Input Video Signal: Mini DisplayPort
Input Audio Signal: Apple Mini Jack
Supports HDMI 165MHz/1.65Gbps per channel (4.95 Gbps all channel) bandwidth
Supports HDMI resolution of up to 1080p
Supports HDMI 8 bit per channel (24 bit all channel) deep color
Supports uncompressed 5.1 channel audio such as LPCM
Supports compressed 5.1 channel audio such as DTS Digital, Dolby Digital