Best used dac under $2000


I am new to the world of dac's. so forgive me if I sound foolish.
It would need to have an optical digital out to pass the digital signal through to a room correction unit associated with the speakers. If sound is of question, I favor a less analytical sound and more liquid and detailed.

Thank you in advance

jrud
You can't go wrong with these, Theta, Audio Research, Classe Audio, Cal Audio Labs, PS Audio all these can be found for around $700 on up
NOT EVEN CLOSE!!!!!!!!!!!!!!!!!!!!!

Find a Sonic frontiers SFD2 MK1...send it to sonic for MARK3 upgrade...they should do it around $800, plus $700 or so for Mk1. Run it thru a d2d1 upsampler with i2se connection for another $300 or so. $2000 total and you will be AMAZED!!!!!! Best $2000 digital...hands down!!!!