Vibrating Speakers

Well, this seemed the best topic to use to ask this question (!).

Does anyone in here have any experience of either the Nimzy VibroBlaster or the iAudio Vibro/VibroPig? If so, do they give a ‘beefy’ mechanical output? For example, if you hold the ‘business end’ against your hand, can you feel the vibrations strongly? Sound quality is fairly unimportant for the project I have in mind, but output power is important.

(Please pm me if you’re curious about the project.)

BFN
CAD