What’s On the Bench Tonight (OBT)

[xrk971]

3D printing would be another way to do it.

JLCPCB can take 3D print jobs and metal CNC jobs for small parts. I want to try the metal work one of these days.

 

[Studley]

I’m thinking of offering the XSD style dipole woofer box separately as a subwoofer / stand for stand mount speakers.

Great idea. I plan on doing this for a pair of Helios speakers. They are quite tall so I might have to limit it to 2 x 12” woofers, or might just get away with 4 x 10”.
But a question: is the vibration cancellation of the bass unit good enough that it is not going to interfere with the speaker that is sat on top of the bass unit?

 

[xrk971]

The opposed driver motion cancels vibrations so you can set a speaker on top of it is no problem.

Newton’s 2nd law: F = (m a) + (-m a)

F=0

The acceleration a of one cone is in +ve direction and other is -ve direction. Same mass cones. Net force is zero.

 

[Studley]

Thanks X

 

[xrk971]

Caldera 12 review and tear down. We need to fix the typo in the website regarding rms power. Manual states 200w rms but peak power would be about 560w.