stevem Messages: 4733 Registered: June 2004 Location: NY
Senior Member
Radio shack instrument speakers back then with the Orange frames where made by Utah and many of them have a Aluminum voice coil cover like JBLs and Altec Lasning drivers.
They sounded good , but where a little lite in the magnet size department.
I still have two of there 12" drivers that are rated a 40 watts and have a 20OZ magnet , one I have in my 18 watt Heathkit amp and I am happy with it!