Detail 01
TK-40B onboard preamp
Provides built-in tuning plus gain, three-band EQ, mid-shift, bass boost, and EQ-bypass controls.

Independent shopping perspective
Built as a right-handed, four-string acoustic-electric bass, the black GB30CE combines a solid spruce top with mahogany back and sides. Its slim mahogany neck and 16-radius rosewood fingerboard are intended to provide a comfortable, playable feel. Plug in and the TK-40B preamp puts a tuner, gain control, three-band EQ, mid-shift, bass boost, and EQ bypass at the instrument, so routine sound adjustments stay close at hand. A single cutaway, 21 frets, pearl dot inlays, chrome die-cast tuners, and gloss finish complete the package.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Provides built-in tuning plus gain, three-band EQ, mid-shift, bass boost, and EQ-bypass controls.
Detail 02
These woods are paired for the instrument’s rich, resonant sound.
Detail 03
The body shape and fret count are part of this model’s specified layout.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. Its TK-40B preamp includes a tuner, gain control, three-band EQ, mid-shift, bass boost, and EQ bypass.
It has a solid spruce top with mahogany back and sides.
It is a four-string bass.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.