Hi Kevin,
Here's what I found out about your bass:
Spoiler SMB4
body: Solid Koa
neck: 3-piece Maple
fingerboard: Ebony
pickups: AXY
controls: volume, filter, Q-switch, pickup selector switch (SB-II electronics*)
originally made for: Rainbow Music
birthday: December 10, 1982
The original owner of this bass lived in Michigan.