If you have a vibration speaker, by any brand, you've found that placing on certain surfaces produces different tones and sounds. We've experimented with speaker "cabs" for our speaker and have fun playing with different shapes and structures to get varied sounds from the speaker. This file is a simple cab with 3 internal pillars for support. Tear it up and play with the sounds you get. This is meant to be more a guide file than a specific recommended cab file.