Guys, if you read back aways the original poster stated that he solved the problem he was having by moving the M80s away from the walls, which apparently were accentuating the bass. This is the positioning problem that occasionally, BUT NOT ALWAYS, OR EVEN FREQUENTLY, plagues the M80s. (OK, Rick? [SMILE])

Because he couldn't leave them in that position, he opted to return them. No problem.

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton