As the title says, I need to get a DAC. I recently upgraded my main rig and my old sound card/DAC (ESI Juli@) is no longer compatible. The rest of my gear includes a set of Sennheiser HD-600s powered by a custom PPA amp with an external STEPS power supply. The PPA and STEPS were built by former moderator MisterX 10-12 years ago. I am thinking about getting a Schitt Bifrost for a DAC and using my existing amp. Any other suggestions for a DAC or should I look at upgrading my amp as well? I have been out of the loop for quite a while and any input is appreciated.