FISHMAN BLACKSTACK SOUNDHOLE PICKUP Bringing acoustic guitars to life Leave it to Fishman to design a humbucking pickup that’s easily installed into virtually any flat-top steel-string acoustic. Whether onstage or in the studio, the ceramic magnets with adjustable pole pieces allow guitars to cut through the mix with excellent string balance. The face of the pickup features a pair of fastening screws, enabling us to go from box to rock in five...