VTV D300 Digital amp

?  Who is he?  What are you talking about?   This amp is released NOW.

Love the simplicity and value but what is the solution for remote volume control?

"Heavy, custom designed aluminum case" — with a Purifi badge 😆

Except for their own input buffers, VTV merely assembles amps from pre-made OEM modules. I wonder who makes the modules for this amp?

You need volume control in your streamer, xover or computer.  For instance, if you have only CD as a source you could use the $500 Minidsp flex with its remote volume control and you can use all the eq in the flex to equalize and room correct....and then add another amp later if you want to biamp your speakers or make your own speakers.  The $400 IFI Zenstreamer has an app for your phone that has volume control.....you can stream with that or add a hard drive or thumb drive to play files.  Many other streamers have coax out with remote controls or apps to use your phone as volume/controller.  The Lumin U2 mini has LEEDH lossless volume control and everything controlled by the app downloaded to your phone or tablet.

If you are using a streamer with volume control then you can always later add the Minidsp Flex in line to room correct and or to biamp......lots of options

He will be getting faceplates in without the Purifi logo......The modules are from the same company as used in the Peachtree GaN 1......Elegant Audio Solutions (EAS). There are lots of companies all over the world that do what VTV does....Nord, Apollon, Audionics, Rouge Audio Design, March Audio, etc. All make very good products.....Right now, the only one selling a digital amp is VTV.....free shipping in the US and 30 day money back.