Hi buddy, no more logorrheic reviews, now we measure them..The ones I'm actually interested in are too expensive. It's hard to ignore all of the great reviews of the Schiit Gungniir Multibit. The most recent TEAC has not received the same kind of reviews from any of the main publications. I had a TEAC CD player that I liked but didn't love compared to some others like the LM's or Rega's.

Upgrade the DAC now:
Topping D30 or D50
Eventually upgrade the transport:
Cambridge CXC
it is about 1 yr out of production now. So, most reviews are old now. Still there is a few NOS ones out there.
http://inearspace.com/2014/11/29/teac-ud-501-dsd-dac-review-bringing-down-the-rein/
http://www.xtremeplace.com/yabbse/index.php?topic=149776.0
http://archimago.blogspot.com/2013/05/initial-impressions-teac-ud-501-usb-dac.html

Well since this thread is about my purchase I'm going to stay the course. I'm only interested in what folks have heard with various DAC's. Not what someone else has measured. So far what I have read about the sound of the Topping's from anyone besides the usual AK cheapskate crowd has not been flattering. Perhaps I'm missing something and I would be happy to go back and look at that.
Just as an aside. Like many of the folks here who do read subjective reviews I pay special attention to the ones written by folks who I have enough historical background to trust their ears as having similar tastes to mine.
Like I said, I have the TEAC UD-501and compared it to others, even from Schiit and I picked the TEAC. I did not like the Schiit up sampling and the TEAC you can turn it on and off.
With some you cannot. Schiit you cannot.