Am I crazy????? Try THIS

"Hanging them,you still will get vibration from the ceiling going down the wire to the speaker."

They actually make vibration dampners for hanging speakers. Check this link to see'em.

i have a pair of cv re-30 hung upsidedown, to keep tweeter at ear level, for 10 years. 200 watts to each, even with the 12's maxed out on hip hop ive never seen them move. i have been thinking about putting my nht 2.5i in their place upsidedown after checking with nht about innerds. hanging them will give u more floor space, sound better, and keeps small hands, and pets away from your speakers. only problem ive had is a baffel came loose, needs some gorrila glue. if i figure out how i will send a picture.

i used 2 i bolts in the ceiling, a brass swivel and a bunch of black nylon webbing, (like seat belts are made of), to make a harness.

About 30 years ago i remember Boze 901 hanging by chain in a Hi Fi shop and soft classical music was playing. Suddenly there a very loud passage (VAAROMMM), this got them swinging a bit.

my step-dad had a set of 901's hanging by chains. i never saw them move but i did hear them one time clear as day and i was outside about 200 yards from the house. phase linear power amp as i recall.