The Sigma BMC-155E+ acoustic bass was signed by Steffi Stephan and comes with a picture depicting Steffi Stephan with Sigma BMC-155E+.

Type: J-14 Fret (5 String), Cutaway
Construction: Dovetail Neck Joint
top: solid mahogany
Back and sides: Mahogany
Neck: mahogany
nut/ bridge: bone
Fingerboard: Micarta
Scale: 864 mm
Nut width: 45 mm
Tuners: Chrome, Grover diecast
Electronics: Fishman Isys + (with built-in tuner)
Finish: high gloss
Satien: D'Addario PBB-170-5

The package includes the Sigma BMC-155E + (with autograph) and picture by Steffi Stephan.