Not had opportunity to compare them myself but a good friend had both the Brooklyn and the liberty at same time and could discern no SQ difference in his system.
So if you do not need all the extra bells and whistles of the Brooklyn go for the liberty.
I was going to do just that myself but a lightly used Brooklyn appeared on eBay and it was one of their 20% of anything days so I ended up with a Brooklyn for not much more than a liberty.
I do not use the extra features at all but it bests the previous DAC I had, esoteric d05 by a long shot.
Good luck whatever you decide.
So if you do not need all the extra bells and whistles of the Brooklyn go for the liberty.
I was going to do just that myself but a lightly used Brooklyn appeared on eBay and it was one of their 20% of anything days so I ended up with a Brooklyn for not much more than a liberty.
I do not use the extra features at all but it bests the previous DAC I had, esoteric d05 by a long shot.
Good luck whatever you decide.