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Radian Audio vintage co-axial drivers, prototypes

I have two pairs of vintage Radian Audio 8" coaxial drivers. One pair has paper cones and one pair has poly cones. Frames are cast aluminum cut corner frames. The paper cone drivers were made for me, the very first of what I think is now called the 5208-C but these were the original 5208 drivers, first paper cones, m-roll surrounds they don't have any serial numbers, came out the back door for a development project.

The second set are the same frame style, they have the poly cones and are part of the very first production units at the time. Both parts have only been used for testing and demos for less than 10 hours. The dust caps are removed, they can easily be replaced if you want them on. They have been sitting for decades and are still in excellent condition.

I'd like $175.00 per pair.

I also have one 2008 8" poly cone driver, been sitting forever as it had a rubbing voicecoil and I don't know if it would stop if you used it but I would just recone it. Someone with good skills could remove the cone and recenter it but probably just as easy to recone it. Asking $50.00 for the motor assembly complete. Same frame style as the coaxials.
 

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limono,
Are you asking about any one particularly or for all of them. I will have to gather up the information. The coaxial drivers are the equivalent to there 1" drivers. I will add the information even if I have to run the testing myself. Off the top of my head I think I remember the fs is 35hz. It has been a long time since I looked at this but they do have a current equivalent with minor changes today. The poly cone coax was the 5008 model. The paper cones were never a production item at the time, they sounded better than the poly cones.