Can interconnect cables improve sound stage height, width, and depth?

blamere
Yes! to your queries. System synergy is key. Certain brands of gear will fare better w/ their voiced cabling. Sometimes, we get lucky per mixing and matching different brands of cables/cords. A fun experiment indeed.
Happy Listening!

Try Purist they can do this with no problem great co and they are extremely well made.

@geoffkait putting them in sideways results in marked improvements on all fronts. Try figure 8s and braiding them as well. 

@blamere Different ICs definitely sound different. Sometimes different sounds better because it’s sounds new. Sometimes different sounds worse because it’s bad. Try some cables from different companies with fair (30 day or more) return policies. It’s a fun exercise, worth the shipping and you’ll probably find something you like!

I recently tried Morrow cables and have perceived more depth and detail than before. 

Lamaze, I suggest you leave the jokes to someone else. 

Subjective impressions are the equivalent of "a little birdy told me it is so)!!!