Which would you pick between the two DAC.

resolution, air and open-ness, speed, harmonic texture, accuracy of timbre, PRAT, soundstage, depth, warmth, bass heft.

= Schiit Yggdrasil

Absolute Sound, absolutely loved it.
http://www.theabsolutesound.com/articles/schiit-audio-yggdrasil-dac/

Cheers George

Every Wadia product I've ever heard sounded wonderful, but so what?  Over the years Wadia has on multiple occasions been bought and sold, reorganized, changed location, etc., whereas, Ayre has been very stable.  Draw your own conclusion.

Thank you everyone for your advise.

Dave, I really like air and openness, details, and warmth.

George, my Modi Multibit look and feel just like a toy to me if compare it to other brand like Wadia or Ayre. The front button switch got to much play. It might be because it is only $249. This is one of my main reason that is why I am not sure if I really want other Schiit. I had an eye on Gungnir multibit before purchase Modi too.

I own the Ayre Codex DAC and highly recommend it.  Ayre Acoustics is a great company and all their products are excellent.  I have used my Codex DAC as a preamplifier/DAC and also a standalone DAC.  It is an outstanding performer in both applications. 

Please see:

https://www.audiostream.com/content/ayre-acoustics-codex-usb-dac-headphone-amp-digital-preamp

Someone on Audiogon has an Ayre Codex DAC listed for sale at $1,100.  Please see:

https://www.audiogon.com/listings/da-converters-ayre-codex-2017-08-16-digital