"Best" DAC for a grand or less


I am looking for a DAC for under a grand . I want something to favor the bass side ,as now my system is a bit on the bright side.I would like it to have a usb port also.My system now is......
Hafler pre amp
Counterpoint solid 1a amp (100 watts)
Nad 515 cd player
Tekton Lore speakers
Thanks.
cwazz
A used Benchmark DAC 1 can be had for under $1,000. This is equal to any on the market at any price. Read this review http://theaudiocritic.com/plog/index.php?op=ViewArticle&articleId=30&blogId=1 f you are skeptical.

Don't fall for the hype. Just get the most accurate reproduction.
If the Rega DAC sounds anything like the Apollo CD player, go for it...
The Rega DAC also has XLR outputs!
Burson HA 160D. I was having the same problem with my 2ry system- too bright. I've only had the device for a week so it's not "broken in" by maker's recommendation. Yet already, I'm very happy with the system's sound with the unit in place. At $1100, it's eesentially in your price range- do audition it. Won't win any appearance contests, but fixed my system's digititis.