Rawster thanks for the feedback, the reason you may find the B2 slightly brighter than other twfk based earphones is due to the OFC silver cabling which is known to help make higher frequencies stand out better than normal cabling can. I have to admit that even for me it took a bit getting used to, but after regular use i couldn't really notice it much. Feedback like yours is appreciated as the loaner program is not just to push our product but as a means to get feedback on a model that will soon go to mass production and as it is not in mass production we do have the chance to play around with the sound to see what we can do better tune it. A property of twfk drivers is that they are quite bright and this can be noted on almost all twfk based earphones, but i myself have been doing more work on audio filters and how they can aid in reducing or enhancing certain frequency ranges and seeing how this can help to better tune the B2, so far the results are mixed and there maybe nothing changed on the final B2 model, but should i come across a good combination i will let you and the others here know.
I have also got quite a few message on when the B2 will be available and pricing, we can go into mass production anytime, but the total production time would be about 2 months, so at the very earliest we are see the B2 in stock by end of April. The final pricing is not confirmed but i am trying hard to contain the end retail price to a max of USD$170, there are still things we need to work out so a lot of the material costs have not been finalized.
Good idea - audio filters can definitely make a difference.
I found the AT CK10 too bright for me, and if the B2 is even brighter you may want to tweak that for sure.