Fretless 12-String Basses

Thus far, only two fretless 12-string (4x3) basses have been made.

2006 Rothstein Fretless Andromeda - Candy Apple Red Finish 12-String Bass
Custom made for Tony Senatore
   

Candy Apple Red Finish

GHS Black Nylon Tapewound strings for the fundamentals

Custom Gold-Plated Hamer bridge and tailpiece

Custom Gold-Plated Gotoh tuners

Kent Armstrong pick-ups, Stereo operation

Passive electronics

Unlined Birdseye Maple Fingerboard with Epoxy Coating

Ebony Binding, Bone Nut

1999 Hamer USA Fretless B12L - Candy Blue Finish 12-String Bass
Custom made for Mark "Surf Rat" Rowe
   

Candy Blue Finish

Inverted String Arrangement

Roundwound strings

Unlined Rosewood Fingerboard

EMG pick-ups

Active electronics

Surf on stage September, 2007

Other Fretless 12-String Basses

About a dozen 12-string (6x2) fretless basses have also been produced by various companies.

Warwick Fretless 6-String / 2-Course 12-String Bass