Purchased one used a few months ago from another AC user, that was from the first batch upgraded by Danny. Also purchased a pair of tubes from Sonic-Craft in the last week. The DAC works very well in my system, especially with the new tubes and the recent speaker upgrade (LS9's). I have three other dacs, a promitheus, the non USB version of the paradisea, and a very inexpensive UK dac, beresford, I think. Currently the Lite-60 is being used almost exclusively for listening sessions. Use the promitheus for LS9 burn-in/background music type sessions...no tubes to burn out

, and have yet to try the paradisea with the LS9's, but will a bit later.