If you can stretch to $1,850 you can get a new Denafrips Pontus II 12th. If not then you can get a used Pontus II for about $1,300. The Denafrips products all have upgradeable firmware that is released free of charge, so updates are released once or twice a year. The Pontus is one of those rare products that performs way above it's price point. I'm heading into 3 years with mine, and never thought it was the weak link in my system.
As Soix mentioned, you can get even more performance from a Pontus (or several other R2R DACs with I2S inputs) by adding a DDC like the Denafrips Iris and going I2S out to the DAC. The Iris can be found used for about $350.
A used Pontus II DAC and used Iris DDC is about $1,650 for the pair, and is still a killer combination