If you have a DAC or preamp that can use a 250VDC output cap, I can't recommend these highly enough:
https://www.madisoundspeakerstore.com/f ... capacitor/Energy, clarity, transparency, along with wonderful body and fullness. They sound a bit tight at first but after a few days they open up. They have transformed my Cary preamp, retaining the full body but with far more ease and transparency. They best the vastly more expensive V-Cap TCUF caps I was using before. Sadly, they've been discontinued. So if you're even *thinking* of a preamp or DAC project, I would grab a pair while they're still in stock. If they made them in higher voltages I would use them everywhere.