You don’t mention if you have a bass shaker.
You’re not gonna get much tactile out of the small guys. Location of the exciters on the surface can greatly impact their effectiveness…
Ideally you position them close to 3/5, 2/5 rule. See here… https://www.daytonaudio.com/topic/excitersbuyerguide
How the exciters are mounted can also impact their effectiveness… The ‘speaker’ part should be taped or glued to the cabinet. If you have the kind with screw holes, those are for mounting the exciters to a fixture like wall or a post. The exciter should not be screwed down onto the resonating surface. That will limit transference of the vibration to the cabinet. It’ll still work, of course, just not as well.
You describe that you have 4 exciters and 2 2.1 amps. The bass channel on those amps is connected to what?
If you want to feel anything there should be one of these on each amp. You can get away with the smaller shaker they sell on the rear channel. That’s what I have and it’s fine.
But you need the big boy on the side channel for pop bumpers.
https://www.parts-express.com/Dayton-Audio-BST-1-High-Power-Pro-Tactile-Bass-Shaker-50-Watts-295-244
Bass shakers plus SSFThump will do the trick.
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