home basses California T-series California UMBO

California UMBO - specifications

NECK 6 x bolted / canadian hardrock maple
FRETBOARD 22 frets or fretless
SCALE 4-string: 864 mm / 34", 5-string: 889 mm / 35"
BODY OPTIONS european ash or swamp ash or alder or mahogany and rarewood top
FINISH OPTIONS matt, aged, selected highgloss colours
HARDWARE sandberg
PICKUP 2 Häussel special designed J-style single coil
PREAMP passive, treble cut, 3-way switch for tone preset selection


colours with matt finish

3-tone sunburst blackburstblueburstbrownburstcherry sunburstgreenburstnatur


All bodies with matt finish colours are made of european ash.

11 selected highgloss colours

11 selected highgloss colours

3-tone sunburst highglossblack highglossbrownburst highglossmetallic red highgloss creme highglosslake placid blue highglossnatur highgloss

tobacco highglossvirgin white highglossmarley blue highglosstranslucent black highgloss

All bodies with highgloss finish colours are made of alder.
Additional option: swampash body.

aged finish

3 decades on stage

For our aged series we have developed unique techniques and special varnishes.
These skills give our instruments a true long time used look and feel.
The very authentic looking aged series is available in three different versions.

type of aging description
1. SOFT AGED slightly worn, some scratches and minor damages,
10 years on stage
2. HARDCORE AGED heavily played, worn and torn surface,
30 years on stage
same as hardcore aged including aged hardware
and fretboard. All MASTERPIECE build basses are
getting vibration treatment to reach
an authentic old school sound.


available species of rarewood:

BubingaBuckeye MapleCocoboloFlamed MapleImbuiaMacassarPear

PearlwoodQuilted MapleSpalted MapleWalnutWengeZebranobahia


All bodies are made of mahogany with rarewood top.

optional finish

optional finishes

gold leaf sterling silverzebra voodoozebra 3-tone sunburstzebra bluezebra yellowzebra green

zebra naturzebra red

California UMBO demo

California UMBO demo

Click on the video screen above to watch MarloweDK playing a sandberg California UMBO on this demo video.