Interesting. I just ran across this post and dug my old HD-A2 out of the basement. I have seen on other groups that it is supposed to have inferior DACs, so I pulled the circuit board (the chip is on the underside). I was surprised to see the BB logo on the chip. I could not see the number too well, because there was a streak of marker thought it, but I could make out 'PCM..55." There could be another number in front of the '55' but I cannot see it. Is anyone familiar with that DAC? Is it a decent one?
Thanks and Best,