After listening to 5 ba IEM's and 8 ba CiEMs both single ended and balanced, using RSA Intruder as amp, I can honestly say that there is a sonic difference, at least to my ears. Matching volume I found better separation and a more dinamic sound. Also bigger soundstage. Cables were Heir Magnus 1 for SE and a balanced cable from RSA.
Well, more power to ya!
I think this will be a tough sell for me.