Audiophile help wanted

@gillj re:...

Are there specific features that are important to you when selecting a DAC ?

Of course...
- does the DAC use R2R/multibit or Delta-Sigma
- the DAC Chip manufacturer e.g. Burr Brown, Wolfson, etc..
- does the DAC have a physical volume control
- what are the sample rates supported e.g. 16/44, 24/96, 32/192 etc...
- does the DAC support Up-sampling, or non-up sampling, or both
- the number of inputs and outputs
- the type of inputs/outputs - i.e. SPDIF, Optical, USB etc.
- the type of input/output connectors..e.g. RCA, XLR, BNC etc..
- the type of power supply/connector i.e. Mains/IEC connector, Mains/C7 Figure 8 connector, In wall (i.e. Wall-wart) DC supply

BTW - That’s not an exhaustive list, just some that I have considered

Regards...

Thanks everyone for your feedback, it's been so helpful, I'm asking because I'm working with an entrepreneur who is developing a combination between a DAC, digital signal processor and server. The idea is that it can search for downloadable high quality music, you purchase the music and it is stored onto it's own server. This means you don't need a computer to store files on and the playback is extremely high quality as you don't have the quality losses you would have through a PC. The product does not stream, but stores music you download through an app. The app helps you search for the highest quality music options available through reputable music services such as Tidal. Do you guys have any thoughts on this?

Have you or your entrepreneur friend compared your product’s functionality to Aurender products, specifically their A10 which contains a DAC also? Aurenders store, render, AND stream using an iPad and their excellent custom "Tidal-like" App. Build quality is outstanding.

I think the marketability of current and future "computer-audio" products is/will be largely determined by the quality/user-friendliness of the App as well as sound quality.

Dave