I'd rather not specify a budget. I'd like to see as many options as possible, and I wonder if a budget limitation might impede that outcome. If the lack of a number for price per unit is a problem for receiving suggestions, I'll certainly come back with a number. :)

What I'm looking for is a way to achieve reference quality in a DAC/amp combo unit. One of the main reasons for this is the pro audio solutions include an audio interface and an amp, both usually rackmount. Not all of our devs even own racks, so home audio solutions came to mind.

Another consideration is the fact that some of them will need to use 2 or 3 sets of speakers for referencing. If I can't get a single unit capable of switching between monitors, then I'll also need to purchase patchbays or switches for alternating between them. This becomes a problem for space-saving measures.

Overall, I'd value a single combo unit capable of all the above, while ensuring the best/clearest signal integrity possible for a reasonable price.