You would be much better off putting something extremely hard and pointy ๐ on top of the speakers, you know, like the Totem Beaks, or even better Super DH Cones. For the more adventurous my large size crystal pack works wonders. The idea is to give the stored energy In the speaker cabinet an EXIT point. The energy will tend to go where the hardest material is, the path of least resistance is where the atoms โ๏ธ ย are the most tightly bound. A pathway outta here! ๐ The same idea applies to tube traps, makes them operate more efficiently. Yeah, baby! ๐ค