Did you see it on a forum like Reddit, a Facebook group, or a DIY audio site?
Was it an audio test sweep, dimensions for a custom speaker box, or a software driver? woofer.zip
Was it related to audio engineering, car audio setups, or a 3D printing project? Did you see it on a forum like
To help me find or recreate the information you need, please reply with a few more details: a Facebook group