My old 040/33MHz could do it but I had to half the bitstream rate. My 060 can do it without skipping any data, but I had then got a Delfina Plus and used it's processor until the thing broke. (left speaker output is dead and I get no response to emails I send to Petsoff asking about a repair)
I wouldn't go with anything below 060 as the 040 may need to sacrafice quality in order to avoid choppy/skippy playback.
