I had to try a new thread on this subject. Klipsch tec support said give you a shot! I have an older 1983 1984 set of La Scala with the AL crossover network. My k-77 M Tweeter has need of a voice coil which I have found. The magnet gap dose not have concentricity due to the notch plate and the back plate of the magnet becoming dislocated from the magnet. The magnet is not broken. The center piece has shifted which should be glued to the back plate. The concentricity of the magnetic gap is critical according to klipsck tec support. Can this be reassembled back at Hope, AR.? I am told that the K-77 M is no longer made. Klipsch has only the K-77 F horn tweeter. The F will not work with my AL crossover network. I am told if I use the 77-F I must replace both tweeters & crossover networks at a cost of $1,900.00 plus shipping! I am told that the Klipschorn & La scala use the same speakers and was hoping that I might find the right speakers or parts elsewhere other than Klipsch. Can any of you fellow Klipschorn & La scala Lovers offer this ole disabled vet some help. I have removed the tweeter horn & wire from the cabinet, is it safe to continue useing my surround sound with this speaker removed ? Your help & opinions are appreciated. Thanks