This bass is a Roscoe Century Standard Plus 5 JJ. It features a Koa top on a Mahogany body, Wenge fretboard on a 3-piece Maple neck, Bartolini J-style hum cancelling pickups and a Bartolini NTMB 18V/3-band preamp. It's got a big, fat J-bass sound which is not overly bright but still plenty articulate.