I'm looking to either buy, or build (or get built) a Dolby DTS Decoder at the size of the FIIO Alpen.
It would have HDMI & Optical as Inputs, with a Headphone Jack as the only Output.
The box would have volume control as mandatory, all other things secondary, if any.
An example of the current market 'leader' http://www.astrogaming.com/mixamp%E2%84%A2-pro/3AM99-HBU9X-975.html#start=1
Has this been done before? Any advice?