spend on the streamer or on the DAC ?

...or to be more direct, don't waste your money on a separate streamer until you have a very good DAC you like, and it just might even also be a very good streamer!  and one less box and cable and power cord...and that again is just my opinion!  Ken

Have you checked to see if you can get a DAC module for the 340i? There is the Simaudio streamer DAC 280d at least you could use the same remote.
https://simaudio.com/en/product/280d-streaming-dac/

I saw the coolest product not sold in the states but in the UK you might be able to. I never heard of it before. Advance Paris. At Kronosav.com

Get the best dac you can afford that has an Ethernet port and then get Roon to run on a server that is located outside of your audio room. Forget about the flawed usb connection, then you don’t need a computer in your room. All streamers are computers and some try to justify their expense on getting usb to work.
If you don’t want to use Ethernet, then use i2s for your dac connection. Most dacs don’t have these inputs but the better 1’s do

+! for this:

rbstehno1,175 posts
Get the best dac you can afford that has an Ethernet port and then get Roon to run on a server that is located outside of your audio room. Forget about the flawed usb connection, then you don’t need a computer in your room. All streamers are computers and some try to justify their expense on getting usb to work.