i have used the p1a with a birdland oden-lite. did not find the upsample did much for sound...a little better but not worth the money. i did find that the cd enhance had a dramatic effect on the sound...to the good. i do not know what it does though. i would buy one but....the quality of perpet was bad....first unit did not work. i could never get the is2 to work (on replacement). i even burned in the unit for 100 hours as suggested by perpet folks (very nice people). think i will wait to see what else is comming out....24/196 in a p2??? (or some other crazy thing i will have to have). they stated they had several product launches comming out in the near future.
hope this was some help.
hope this was some help.