I'll take mine with the black faceplate to match the rest of my 2 channel system (the silver stuff is in my HT); impedance matched for my HD600's; balanced inputs; separate power supply and built-in DAC.
If you're going to have a built-in DAC, then how about adding the ability to decode DD and DTS to Dolby Headphone? That'd be
really cool.
And, of course, there basically isn't any such product on the market right now. All (or almost all) stand-alone Dolby Headphone systems require you to use the headphones that come with ithe system - usually cordless 'phones that I have no desire to use.
(Actually something I've thought for ages would be cool, but which doesn't exist and probably never will do, is a cheaper version of this: a pure-digital Dolby Headphone front end. You would feed in a DD, DTS or stereo PCM stream, internally decode or - in the case of stereo PCM - apply Dolby PLII processing, then go through a Dolby Headphone processing stage, and then finally output a Dolby Headphone signal
digitally as PCM, to be fed to the DAC and headphone amp of your choice. So you'd never leave the digital domain at any point. Possibly as an extra one could add A/D conversion so you could start with an analogue stereo signal.)
