[EricHaptics]

Quite easy to build. The problem is to get ahold of the parts.

Get a well know console controller, take out the two actuators and mount them in any other form factors you like.

You can drive them with an audio pipeline, they are effectively a 4 ohm speaker. Attach them to a sound card and you can have your stereo haptics subwoofers.

You have to filter out aggressively the resonance frequency of the actuator to get a flattish response. Not that subpac or the other folks do so

[clolege]

How many watts can those handle? I would imagine wanting something more powerful.

[EricHaptics]

No idea, worst case scenario the stator comes out and you find your limit :)

The key is to mount them properly on the body to maximize mechanical coupling. You don’t need a lot of watts if the losses are almost zero.

If you want more, build an array of actuators and spread them out.

More immersive feeling compared to a stronger one.