I guess the ideal solution would be some kind of end table with skinny legs that fits over the EP500 so you get the same result as sitting the receiver on the sub but without all that vibratin' stuff.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8