subwoofer suspended from ceiling?

sounds like i am committed to the experiment.
get back to you in a week or so.

We've done a number of designs with soffit mounted subs. There are issues, vibration, making a very rigid mount, but if you can over come those it can work well. In most cases the floor is simplier, and it's what most people do, but it doesn't necessarily mean it's best.

The 1/2 between floor and ceiling as Eric points out can sound very good. It cancels out the height mode which is typically the dominant axial mode. We do this regularly in our designs

Committed is what you should be for doing.Save that suspension for monitors or turntable on rigid pole.But Put this up so I can easily follow what happens.I am thinking of that scene in Young Frankenstein when they have to crank the table up to get the lightning.
G'Luck.
Chazz

I have suspended speakers for years. Suspension of subwoofers eliminates all kinds of floor vibrations for a start, and the speaker is decoupled from the structure of the room. I would definately give it a go, be careful as subs can be very heavy. You have to make sure the rope or threads (I have used very strong fishing line) can take the weight.