Wyred dac2 to replace krell hts preamp?

Chenglo1,

I have mine fed async USB from a Dell laptop via kernel streaming. It goes directly via Audioquest Columbia XLR into W4S ST-500 power amp, powering Sonus Faber Concerto Domus speakers.
Short signal path, volume controlled in the DAC, beautiful sound.
I owned Music Hall, PS Audio DL III with level IV mods and Benchmark DAC1 before settling on the DAC-2. Heard more expensive stuff, not in my house, and came home with a warm and fuzzy feeling of satisfaction with what I have and enjoy. And that's really priceless in this crazy world of merry-go-round. ;-)

Mihaitaa

Can u comment on using the dac2 as a preamp and which amp are using? Thx for your response.

For starters, W4S will bring async USB to the table, and that's the best way to connect to a computer. Others might have a different opinion, but I, one, I'm sold to it.
W4S DAC-2 is a superb DAC which I thoroughly enjoy and feel no "upgrade bug" anymore.
Thus, while I cannot talk about a comparison with what you currently have, all I can do is to wholeheartedly recommend the W4S DAC-2.