DACs for Stax.

Looking for dac recco’s for Stax set-up (Solid State Amp). Currently using Peachtree Dac itX and looking  to upgrade for under $1k. Thx 
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Currently 15% off on their own site (but then you deal with them if you want to return it, and not with Amazon).
thx very much for your recco. looks good to me.