I imagine this is almost entirely a product for the home rack. You know, the kind of device an integrator would sell. Except this is more of a DIY device with much lower price than those sold by such companies.I wonder what market segment this TP line is meant for. They are rack mount, but the RA3 is only 50ish wpc at 8 ohms before the knee, which is no where near enough power for public space applications.
If I had a 19" rack for Hifi stuff, I would definitely consider adding this to it instead of getting another (also great) DAC. Outside of the features the ADI-2 offers, this seems like a pretty complete package. And with the WiiM Pro offering parametric equalisation starting this or next week...