Seeking recommendations for DAC to amplifier balanced XLR cable


The amplifier is Musical Fidelity M6si and the new DAC is RME ADI-2 DAC FS, both great devices. At first I connected them with AQ Colorado 1m RCA. I happen to believe, however, that balanced cabling, which is possible between these two devices, has theoretical advantages over single-ended. I ordered Sommer Epilogue XLR cable from Germany, plugged it in yesterday and compared... Unfortunately AQ Colorado beats the newcomer. I have 2 choices: stay with AQ Colorado RCA (since it already plays great) or look for a better XLR cable. Any advice here is welcome! 
ghjuvanni
@david_ten Perhaps not a fair comparison indeed. I don't quite believe in cable break-in, but I am going to give this newcomer a chance. I was just trying to listen to it but I had to switch it over to Colorado, the lack of clarity was so annoying. I think the not broken-in cable would be harsh. This one is not, it just misses detail. I doubt that this effect will improve with time.
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@gdnrbob I have Mackenzies RCA. Good, but I slightly preferred Colorado RCA. Considering Mackenzie XLR though, as I don't want to pay a lot for that balanced interconnect
@ghjuvanni  Good on giving it a chance. Your first impressions may indeed hold.

I don't know your budget (and cable length), but I have been very happy with SR cabling after a number of comparisons with other cable manufacturers...at similar price points. Simply a suggestion. I don't like making recommendations because there are so many variables.

Depending on your budget I can offer another suggestion, but I'll wait for your response. It is what I am moving to for all of my analog cabling. 
You may want to check out balanced XLR cables from Acoustic BBQ.  They are sold on Audiogon by grannyring.  He will customize for you and can provide double ICs using the Schroeder method.  I used them between my phono preamp and my integrated amp.   Highly recommended.