Zelda provided us with a review with the dual BA driver $199 IEM from Brainwavz.   From the review the B200 is a better IEM than the single BA B150 but Zelda believes the B150 is a better value as it is half the price.  Personally, I would look into the 1MORE, Easy LZ or even the Echobox Finder IEMs.

Review of the B200