Audioquest vs Mogami XLR Audio connector cables

I had recently purchased a McIntosh MC152 amp and I used my 6 year old Mogami XLR cables to connect it to my preamp. I decided since there was a 1/2 off on Audioquest Columbia cables to give them a test. I always thought Mogami cables were of good quality and was not sure what to expect with the Audioquest cables that were pure copper as well. 

In short there was a more open sound...more clarity with the Audioquest cables in a very good way. Little details were heard better and I have to say I am happy with my choice. I know some say there are no differences, others claim they all sound different, but with my setup, there was an improvement. If I did not like them, I would have returned them. I still have 60 days to decide if I want to keep them but they are staying.