DAC Input

Hello AG community,

Its unfortunate to me that my Ayre Codex is deciding to give troubles. It still works and sounds great but the display is shot. Although I love this thing, I fear from other troubles may arise. Im not sure if it would be worth repairing or not as i'm sure the repair cost won't be cheap. I know its not the best inout source but I feed the DAC from my streamer through the optical inout. Are there any familiar with the sound of the Codex DAC and advice on repair or thoughts on comparable to step up on sound quality with multiple inputs in the $2-3K range? As always, your audiophile inputs are always well respected and appreciated.