Grover’s original Rotomatic tuners are an engineering marvel, with style and performance exactly suited for the Gibson J-45 Custom acoustic electric guitar. With a gear ratio of 14:1, the Rotomatics deliver precision tuning in a durable housing that provides maximum protection for the gear and string post. All moving parts are cut for exact meshing, eliminating the possibility of slippage. A countersunk tension screw lets players regulate the tuning tension to any degree. A special lubricant inside the gear box provides smooth and accurate tuning stability.
The pickguard for the J-45 Custom is Gibson’s standard fire stripe tortoise tear drop shape, exactly as it appeared on the very first j-45 ギブソン in 1942. As with all of Gibson’s pickguards, the coloring, inlay, and binding are all done by hand.
The gibson j45 acoustic comes equipped with the popular Element Active Acoustic Pickup System from L.R. Baggs, which features a low-profile undersaddle element—or transducer—that’s proven more stable and durable than many standard ribbon-type pickups. Combined with an onboard preamp with an unobtrusive and removable volume control mounted just inside the soundhole, the Element delivers performance not previously attainable from an undersaddle pickup. Its sleek and effective design removes unnecessary internal components to enhance the coupling between the pickup and the guitar and improve the sensitivity of the transducer for a robust, lively and natural acoustic sound with excellent dynamics and delicate high end. The Element works with a standard 9V battery, which is housed inside the guitar in L.R. Bagg’s “Battery Bagg.”
The dovetail neck joint is one of the oldest—and best—ways of securely joining the neck to the body of a guitar. It is also a complex and expensive neck joint to build, but the result is a tight, locking connection that supports the neck at the proper neck-pitch angle, allowing the body and neck of the Gibson guitar to become one solid piece of resonating wood, with no metal to impede vibration. This process of gibson guitar j 45 is done entirely by hand, requiring patience and skill.