The W2 has been measured properly. No Dap can compete within this price range with W2. Afaik, DAPs is usually not worth it compared to buying a cheap Android phone+dongle. Most DAPs=old android phone with built in dac /amp you pay premium for.
Here is an update for the Luxury and Precision W2 . Need to translate yourself. https://card.weibo.com/article/m/show/id/2309404608789365260508#_0
This W2 seems incredible so far!