odd question about stand-mount speakers


Is there any reason you shouldn't turn stand-mount speakers upside down and listen to them that way, as long as you use some kind of vibration control/decoupler between the speakers and the surface they're placed on? The reason I ask is because, at least in a near-field setup, I would think having the mid/woofer ABOVE the tweeter would enhance image height/size -- assuming the tweeter is kept at ear level. (A couple of asides: I don't currently have bookshelf speakers, otherwise I would experiment. Will likely be buying some in the near future though. Also, I know that there are some stand-mount speakers that place the mid/woofer above the tweeter, but the vast majority do not -- most of the ones I'm interested in do not.)
128x128hiphiphan

It depends on how the crossover was designed and it's affect on vertical dispersion and interaction between the 2 drivers. The dispersion won't be the same upside down and a good speaker was designed to be used the way the designer tells you.

Dynamic is correct. You can end up with a giant suckout or a boosted area in the frequency response where the 2 drivers interact due to their design and the crossover design. 

Oh, ok. Bummer. But that makes sense. I guess as I get closer to making an actual purchase, I could alway contact the manufacturer and see if their specific speaker would be a poor candidate for my experiment. Thanks for the replies.

I have a pair of Buchardt Audio S400 MK II speakers, that are designed with the woofer top/tweeter below. With my speaker stands the tweeter is at ear level. I did try the upside down with the tweeters at ear level, and the soundstage was off…..didn’t try messing around much more, moved them back pretty quickly.

I do use “drum dampener silicone pads” that Mads Buchardt suggested in an email, that do make a very noticeable improvement