I can’t say I’ve noticed any difference using the feet but elevating my M80s about 1-2 feet off the ground improved the front soundstage some and greatly improved the ambient effect with 2 channel music and even a little bit with 5.1.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1