Okay - since there was a sale on the original bs283 due to a newer model having been released, I decided to pull the trigger. It has a very full sound in the mid low to low, in fact too much. When measured it shows that the entire fundamental vocal range is highly bloated, and it has the same dip in the harmonic range as the 403 measured by Erin, not a good combination - otherwise it kinda follows the target curve in broad terms, so it is not hard to EQ - with minidsp and dirac live the speakers sound quite incredible with very deep bass for such small speakers. It is the same drivers, as far as I can tell, as the Carina models, with a little more volume and different vent. Build quality is outstanding. I haven’t opened up the speakers yet to check the crossover, and it will likely be a while before I find the time. Overall I was a little disappointed at first, but with proper corrections, it can sound wonderful.