The Charvel Model 4A is a (super)strat guitar made in Japan in the eighties by the company Kyowa - Shokai under contract by IMC (International Music Corp). Grover Jackson chose a pointy headstock design that was popular among a new generation of guitar players. The Charvel Model 4A is at the top of the bolt-on neck models of the Charvel Model series. It has an HSS pickup configuration. The J-200 pickups are actually Dual coils in a single coil housing. Besides the passive pickups the Model 4A also featured Jackson's JE-1200 active preamp with mid boost. The neck was a Quarter-Sawn maple neck, with a compound radius 12"-16" rosewood finger board with sharkfin inlays.