Any problems with laying the M3s on their side? I just ordered a pair and the location (on an actual bookshelf) requires them to be on their sides. (my wife doesn't want them any other place)

Just wondering if anyone is doing this and if there are any sonic negatives?
Maybe put those adhesive rubber feet on to reduce vibration?


AV equipment (in case you care)Panasonic TH-50PE700U,PS3 80GB,HK 445,Axiom M60,QS4,VP100,Hsu VTF2.3