About BT Codec
First thank you for the review, you guys are doing great work.
When taking a fully subjective approach towards loudspeaker evaluation you must bear in mind the codec quality. The A2DP is far from being a high quality codec and many of the issues you may relate to the loudspeaker can be, in reality related to it.
BTW, there is a great bluetooth codec named APT-X that is getting more and more adoption (Apple, Creative, Sennheiser) that is completely lossless and with no latency.
I think that it is badly missing from Jawbone product
...My 2 cents