Yes, Bill can fix most anything that wrong with a driver. Voice coils, magnets, cones, spiders, etc. He replaces spiders when he installs new surrounds because both work together and form the driver's suspension. Though the driver will work again after a simple refoam, in Bill's eyes, the job's only half done (actually less), and the driver is still broken.
Regarding voice coils, Bud Fried left me his very own loudspeakers prior to his passing. After using them a bit, I discovered an issue with one, and took them to Bill. Bud's speakers obviously had some "hot rod" in them; in this case, a 1" dual voice coil in the 6.5" Gefco. Bill hunted around through his incredible supply, and actually found a pair, which he claimed was only the second time (though, obviously common in larger drivers) he'd seen this in more than 40 years. In no time, he had installed new ones in both drivers. I figured he wasn't going to find these unusual voice coils, and wondered if my next move would be to shop for new drivers. But he assured me he could have them made up for him by his supplier within a week or two.
Regarding voice coils, Bud Fried left me his very own loudspeakers prior to his passing. After using them a bit, I discovered an issue with one, and took them to Bill. Bud's speakers obviously had some "hot rod" in them; in this case, a 1" dual voice coil in the 6.5" Gefco. Bill hunted around through his incredible supply, and actually found a pair, which he claimed was only the second time (though, obviously common in larger drivers) he'd seen this in more than 40 years. In no time, he had installed new ones in both drivers. I figured he wasn't going to find these unusual voice coils, and wondered if my next move would be to shop for new drivers. But he assured me he could have them made up for him by his supplier within a week or two.