Where did you go and how was your experience? I recently purchased a pair of Mosaic's and am enjoying one of them. The other one appears to be sick. When I play test tone - low to high frenquencies, there were no cut out above a certain frequency, however, it just lack clarity and the airyness that the other speaker has. I am not sure it's the ATF or the crossover. I am a newbie... Any help about where to have it serviced would be greatly appreciated.