Seeking recommendations for DAC to amplifier balanced XLR cable

BTW, do you think that the AZ can still improve anything? Is it worth the effort/cost?

As I’m totally unfamiliar with the Sommer interconnect I really have no idea if the AZ would yield any improvements.  I would say that if you haven’t had the opportunity to hear many interconnects in your system it’s always worthwhile to hear some others for perspective if nothing else.  I’ve heard several interconnects in my system and the AZ Silver Refs are very good all-rounders, which you probably already know having read some reviews.  So if you do try them and don’t notice any meaningful improvements you’ll have some peace of mind that you’re in very good shape and can put interconnects out of your mind for a long time.  Since wires are relatively easy to try used with little risk I think it’s well worth the effort, again at least for perspective if nothing else, but that’s me.  In any event, have fun listening to and enjoying your new improvements. 

@ghjuvanni — Great detective work and congrats on finding the issue and on being happier about what you’re hearing.  I’d still say to give the Sommer some additional playing time to possibly show its full potential, but very glad to hear its already delivering what you were looking for.  This has to be especially gratifying after going through what you did.  Enjoy!

Acoustic Zen looks interesting but $840.

FYI, there’s a 1.5m pair of AZ Silver Ref l XLR (list $1500) available at US Audio Mart for $495.  At that price you’re unlikely to lose much/any $ if they don’t work out.  If you’re not already aware of it, you should go to Hifishark.com as you can find products being sold on other sites in addition to what’s listed here so you’ll see more opportunities.  Just type the brand and/or product you’re looking for in the search bar in the upper right and you’ll see all current listings, and there’s a tab that shows past sales, which is helpful as you can see what the item has sold for in the past.  Best of luck. 

Given what you’re looking for and budget I’d recommend used Acoustic Zen Silver Reference ll.  If they don’t provide a meaningful improvement you can sell them for little/no loss as the used market for AZ wires is pretty liquid.  Best of luck in finding what you’re looking for. 

I don't quite believe in cable break-in

Every new cable/interconnect I’ve ever had in my system required at least some break-in time.  I’ve also found that even wires that are already broken in can take some time to settle in to a new system.  The Sommer might not be the right interconnect but still deserves some more time to better assess its true qualities at least IMO. 

That aside, what improvements are you looking for and wha5 sound characteristics are most important to you?  This info will help greatly in making recommendations.