Best Dac under $600... New or used


Whats the best Dac under $600, new or used, with volume control? I'm thinking about either a used benchmark dac 1, paired with an inexpensive amp for now, OR, a peachtree nova 125 or ...??

Whattya guys think?
128x128b_limo
I'd also look at the Parasound Zdac V.2. It has the volume control you want, tolink, co-ax and USB (all asyncronus) as well as dual headphone jack.
X12 channel swap (DSD playback from USB input)
I got information that the manufacturer was aware of this issue but had no plan to fix it (as of today).
I know it's not below $600 - but MusicDirect currently has the Musical Fidelity M1SDAC on sale for $699 with free shipping

Regards...