There are three patents on that basket. Two for the design itself and one for the removable thread adaptor which makes the top assembly replicable. Even if the cast was 100% re tooled it would infringe on our design patent at the very least. The patents are all posted on our website under each driver that uses the frames.
The tooling and design costs for that frame were very very expensive and you don't see many custom frames around for that reason which is why we are defensive about it just as JL Audio, RE, MTX, Kicker, or any other manufacture is of theirs.
The reason many older frames are shared is because they were designed over 14 years ago and the patent no longer holds. The frame we use on our
TC-1000 is one example a "free" frame that anyone can use without infringement.
There is nothing illegal about buying our frame from our vender or directly from us, you just can’t resell it unless otherwise negotiated. We are an OEM too.
If anyone has any questions for us, please direct them to our email or our forum.
Thank you all for the comments and concerns,
We have some very exciting new products lined up for 2007 for the car audio crowd.
http://www.tcsounds.com