There are fine examples of both downfiring: SVS, REL, ACI. Frontfiring: Aerial etc. I can see a potential advantage to front firing if the crossover is high enough, probably above 100Hz, but that's a different matter.
A forum community dedicated to home theater owners and enthusiasts. Come join the discussion about home audio/video, TVs, projectors, screens, receivers, speakers, projects, DIY’s, product reviews, accessories, classifieds, and more!