Dual opposed subwoofers have the benefit of directing the kinetic force of each subwoofer directly at the other in directly opposite directions, causing the forces to cancel. While this doesn’t eliminate all cabinet vibrations, it eliminates many as well as removing directional forces acting on the cabinet.
The most shocking and noticeable effect of this is realized by simply putting your hand on the cabinet while the subwoofers are playing. Your brain immediate expects to feel the cabinet vibrating and the actual effect feels like the subwoofer is off.
While this sort of implementation isn’t always possible, when it is it absolutely is worth it.
This is a quick video showing the effect of a capacitor sitting on top of the cabinet, the benefit is quite clear. Thanks!
Негізгі бет DOS Subwoofer Project - Force Cancellation Demonstration for Dual Opposed Subwoofers
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