Previously used Audiolab 8200CD, had denser sound, lacking in instruments separation. Heard Marantz cd-8005 during audition, it’s kind of thick voice."
For the most part, the dacs analog section is responsible for the qualities you list. If you like the sound of the K3 and want to take it further, look at a Wadia di122 or an Ayre Codex. Both are a little over your budget, so you may have to go used. If that's not an option, save up until you have enough. You won't be sorry. Those dac's are well worth the extra money.