The Rockoon RB-51 FL belongs to Kawai's Japanese production era around 1989–1992. Photographs document a lined rosewood fretless fingerboard, maple neck, original Kawai JJ pickups, original Gotoh tuners and a German Schaller 3D bridge. At 3.54 kg it is notably light for a full-scale bass; the scale is 34 inches.
Its neck production code is Y00705. The bass comes with an original Era soft bag. Available condition notes describe the bass as exceptionally well cared for, with two very small cosmetic dents on the back. No cracks or structural damage are noted.
Inspection & research notes
The bass is exceptionally well cared for; condition notes record no cracks or structural damage.
Available research dates this model to circa 1989–1992.
























