Scott,
When I was using the Barbetta Sona speakers, there were a few venues where this was beneficial, such as a gymnasium where the sound bounced off hard surfaces. Since purchasing the Bose L1 this is no longer a problem, but I do face the sub sideways in the gymnasiums.
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)