n8skow 10+ year member
CarAudio.com Elite
Up till a few years ago, you could still buy their version of the squares... Website has been down a longtime though...
credence speakers made the squares iirc. designed in stillwater and the original solo circles and squares were built in Kentucky at credence until they shipped overseas.
https://www.facebook.com/pages/Credence-Speakers/158308987534850