Mid-priced warm sounding DAC?


I've recently decided that a good route for me to take is upgrading my system with a good DAC. My current system is a bit bright sounding, so I'm looking for a good DAC costing up to $600 (used) that will provide a smooth, warm sound to match my currently bright system. I'd also like the DAC to be capable of upsampling, although if necessary I could add an upsampler to the digital chain at a later time. My preference would be to have it built-in, however.

Any suggestions?
jwglista
If the DAC does not oversample, wouldn't that mean that certain details in the music would be left out? I'm assuming that is the trade off: smoothness for musical detail.
Try the Musical Fidelity A3 24 dac.
Its upsamples 24/96 or 24/192.
You can find one used for about $650.00 or lower.
Regards,
Dan
Non-OS vs oversampling is is like tubes vs solid state. Tubes should not sound good since they don't measure well. Conversely, SS should sound much better, given the great specs. However, when you listen, tubes can sound magical and muscial. The same is true for non-oversampling. If music were originally recorded as 24/196 then I think that a 24/196 dac would sound great. But if your source is redbook cd (16/44.1) then the sonic benefits of upsampling/oversampling are dubious (in spite of the so called technical arguements).
Alpha3: I was actually looking at the A3 24 DAC before. I found a review for this unit on Sterophile.com, but I found Sam Tellig's review to be drawn-out and useless. I'm a bit skeptical about the very basic, homemade-looking NOS DACs. The Scott Nixon is so far the most attractive NOS DAC listed above. Has anyone heard the Scott Nixon and the Music Fidelity A3 24 who can offer comments on the differences between these two?
Search on audioasylum.com. Nietzsche posted a review that included the Scott Nixon and the MF A3 24. Based on his description (and my experience) the TubeDac will be great for a bright system like yours. I also think that the newer Tube Dacs have improved speed and extension (mine has been updated by Scott). The dac no longer sounds slow, though it doesn't slam you around. If you do listen to a Tube Dac, make sure you give the tube 30 minutes to warm up before you make a final judgement.