i've owned my 850 for a bit more than a year now and i agree with what ucmgr wrote and what jla did--i would only trade up for another wadia product. i compared and contrasted the 850 to a number of machines (see my 850 review at audioreview.com), was suitably impressed and absoultely swear by its warmth, detail and musicality. i run it directly into a pair of tube monoblocks. good luck.
