Long story short I have made 2 attempts for opinions on sat/sub sets in the HT & Speaker forums with no success. During my qiest for the "perfect" sat/sub combo I came across the Magnepan HT set (4 MMG-W and 1MMG-C). I really like that they can sit flat against the wall when not in use and swiveld out to listening position when needed. I plan on using a Pioneer Elite VSX-94TXH to drive them. Do you planar speaker users have subs? Is one necessary? Desired? What else should I know?

Thanks for your time.