I am wondering if one of your DAC's supporting hi res formats can be configured to replace the hagDAC board in my Hagerman Audio Labs Chime which is a great redbook only, stereo tube based DAC.

http://www.hagtech.com/chime.html - for description

The hagDac board has SPDIF inputs and has a passive IV stage on the raw analog output that creates a 50 mv signal, that is then amplified by a wonderful SRPP tube stage to line level.

My goal would be to implement a twisted pear buffalo SE or similar in front of the tube stage.

I would also upgrade the USB input board to support higher res formats.

Thanks