This video went into much greater detail and did some frequency response testing with different materials and shapes.

I don't need more speakers...lol I have too many now.

I just found this an interesting concept which was very inexpensive to experiment with.

https://youtu.be/CKIye4RZ-5k

Billy


“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”