I bought a pair of these tactile transducers to attach to my home theater seats. The effect is incredible! Don't get me wrong, I have a 15-inch servo subwoofer that shakes the windows slightly when I want to; However, there are still not the sensations that these little beauties give. in a movie theater where you can feel the bass all over your body. The lowest frequencies are not yet audible, but feeling them immediately improves the impression of the film enormously. and the other is routed to a cheap stereo amp to the CD input. As a result the signal going to my 2nd amp contains only low frequencies as set by my crossover in my 1st amp which is set to 80Hz. I connected bass shakers to the outputs of the 2nd amp speakers, and now I can adjust the "volume" of the bass shakers with the 2nd amp volume control. and live action. I couldn't be happier with these products. I actually had to make them smaller because they wobble so much. You don't need a much more expensive solution as it creates more shakes than you will ever need. I gave them up because initially they shook too much and created a very artificial experience. When turned down they sound a lot thinner, but my cinema seats still wobble a bit.
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