If you are not looking for all of the features of the 390, you could also consider a used 380 DSD with their M-eVOL2 based volume control option and the streaming option, or one without the volume control and pair it to a reasonably priced preamp like the Benchmark.
I own the 380DSD and love it. I find it extremely musical and easy to listen to, along with offering very good detail.
Back when I was looking for a new DAC, in my system (Pass 250.8+Sim 740P) I compared a Bryston BDA-2, Berkeley Alpha Dac 2, and 380DSD and preferred (and purchased) the latter. To my ears it didn't have the ulta-resolution of the Berkeley but I found it to sound more like music and was just more enjoyable to listen to.
A 740P paired with Luxman m900u amp would likely be awesome :)
I own the 380DSD and love it. I find it extremely musical and easy to listen to, along with offering very good detail.
Back when I was looking for a new DAC, in my system (Pass 250.8+Sim 740P) I compared a Bryston BDA-2, Berkeley Alpha Dac 2, and 380DSD and preferred (and purchased) the latter. To my ears it didn't have the ulta-resolution of the Berkeley but I found it to sound more like music and was just more enjoyable to listen to.
A 740P paired with Luxman m900u amp would likely be awesome :)