Best sounding new DAC under $2500?

I totally second the Audio Note Kit DAC recommendation....They are awesome! Hate to say it...because it's overused...but very analog sounding.

Metrum Octave MKII

Analog-sounding is over used term in audio and does not necessarily mean better or that you'll like. You just must try before you buy (from manufacturer with fair return policy) with your gear in your listening space. Relying upon online opinions while sometimes helpful is risky to base purchase on.

I've heard some good things about the BMC (but never heard it myself).

Also check out the 2 new Cary Dacs. Both sound fantastic (and the 100 would be at your price point).

***Cary dealer disclaimer

I'd suggest the BMC PureDAC as well. I've been very happy with mine for about 4 months using Genesis 5.2 speakers which can be fatiguing with most DAC's I've owned. The BMC is so smooth, fatigue isn't a problem anymore. Mine replaced a PS Audio PWS Mk2.