Someone posted this elsewhere:
>>>>>>>>>> POSTER 1
It really depends on the quality of the speakers/amp you are going to use for this setup. If you are spending US$60 on a pair of Logitech speakers then a DAC is overkill, but if this will be part of your house sound system powered by Cabasse and Teac, then clearly a DAC will improve the output (even a cheap one). For the Bose Companion I'd say overkill
>>>>>>>>> POSTER 2
I wouldn't buy a DAC is you aren't using a good stereo amplifier...