Given that these are for a desktop and that you like the Image B6, how about stepping up in product line and down in size with the PSB Imagine Mini? It has a ~8"x9" footprint and its front profile is smaller than a 6"x9" paperback book. Smaller drivers give better point source driver integration and dispersion, and with the money you save you could always add a little sub to fill out the 30-60 Hz region.
It also has the neodymium magged titanium dome tweeter from the Synchrony line. Better tweeters make things better.
It also has the neodymium magged titanium dome tweeter from the Synchrony line. Better tweeters make things better.