Sounds good. If you want the demonstration to go smoothly just push the speakers a couple of inches back into the entertainment center recesses -- they'll sound like boxy little horrors. Do the demo with music your wife likes

Hint -- M22 speaker boxes are about the right size to be M22 speaker stands; they're just not real "decorator chic".

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