"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
The Music Hall may be a great choice, but Stereo Designs in San Diego also carries the Rega DAC and the Ayre Acoustics QB-9 (which I bought!).

Whoops! My mistake. I meant Stereo Unlimited. I like the guys at Stereo Design. I got my Rotel cd changer and a cheap Salamander rack from their used area.
I would recommend the bel canto dac 1.5. It retails for $1395 but you should be able to get one for $1100 - $1200 new. See link below to excellent review from computer audiophile. Good luck with whatever you decide.

http://www.computeraudiophile.com/content/Bel-Canto-Design-DAC-15-eOne-Processor-Review