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Ayre QB-9 DSD or Codex?

I don’t need the preamp function of the codex and the optical input is not a big deal for me. In terms of pure sound quality of USB input which is better? I’ve read that the QB-9 has a slight edge but I have yet to hear the Codex.

Also considering the Esoteric D-07x.

Any input on these would be fantastic.

Thanks!
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hgeifman
2,110 posts
 
The Ayre Codex DAC is in current production while the Ayre QB-9 DSD DAC is not. 

The sound quality of my Codex DAC is excellent and I suggest you give it listen. I use my Codex DAC as a DAC and its sound quality is excellent.  I also used the Codex DAC as a pre-amp with great results.

i am not  familar with the Esoteric D-07x unit.   Several years ago I had the Ayre QB-9 DSD DAC and believe the Codex DAC sounds better but everyone has a different opinion on this. 

I suggest you audition the Ayre Codex DAC.  
hgeifman
2,110 posts
 
Please see the link below for an Ayre Codex DAC listed for sale on Audiogon:

https://www.audiogon.com/listings/da-converters-excellent-condition-great-sounding-dac-preamp-2017-1...


gdnrbob
4,409 posts
 
I second the Codex.
Though I haven't heard the QB-9, I am hesitant to spend a lot on a DAC, as technology changes so rapidly with this item.
The nice thing about Ayre is that they offer upgrades.
In my opinion, the Ayre Codex is on par with the Schiit Yggy, with the Ayre slightly better. 
YMMV
Bob
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