We started using a transducer inside a guitar and using it as a loudspeaker

We started building a box trying different types of transducers and membrane loudspeakers

The transducer sits on the horizontal axes while the speakers sit on the vertical axes. The vibration between parts is distributed via a sound post.

Tweeters are incorporated into a bamboo tubes. One is covered with a tunable skin.

The wooder is built to respect violin physics, the high range microphone is is routed to the upper speakers while the low range to the wood resonator.

We can build transducers from broken loudspeakers

A wooder can be a violin case

We can use larger transducer and thicker wood boards to change the frequency range