Weber designed 12A150A alnico bell speaker USA made by Eminence for the Fender Custom Amp Shop's low power tweed'57 Twin 5E8-A amplifier. , 25W, curved seam cone, 40oz AlNiCo magnet, 1-1/2? This is the original speaker specially built for this model that came in the Fender'57 Custom Twin-AmpT (Fender Model #: 8140500100).
Once they were all used Fender switched to installing their Fender Special Design Eminence production alnico speaker. Speaker works and sounds exactly as it should. Bright, smooth breakup, aggressive, punchy and loud. Compressed and fattened at higher volumes. Adult used, smoke free, pet free home.