Category Archives: 4-String Fretless Bass.

The Jamal Ursa Major +, 4-String Fretless Bass.

Exotic Custom 4-String Fretless Bass – $20000

Date: 2011-11-22

The Jamal Ursa Major +, 4-String Fretless Bass.

For Extremely Reluctant Sale: The Jamal Ursa Major +, 4-String Fretless Bass.

This is the only one of its kind out exotic instrument made from the best acoustical & exotic woods. This Fretless Bass was created in 2007 by Vallejo, CA Luthier Kevin Robertson at KR guitars, where all the intruments are hand made with impecable attention to detail. It is signed and dated by the Creator. The action is Great. Lower than most. The Saddles & Pickups are hard mounted into the wood. The fitting of the woods together are impeccable, remarkable even. Overall the bass has a very solid and strong feel to it, and yet this bass is effortless to play. It can really only be described as hitting the pedal notes on a grand piano. This sound quality holds true all the way up to the 30th note on the G string. There are no dead spots on the finger board at all. Octaves, intervals and chords play true with incredible intonation. The notes do not crash into each other canceling each other out or becoming dissonate. The sound sustains as long as the strings are still moving. Rich/Full sound? Dark sound? Warm sound? Bright sound? Sure, all apply and more. An Instrument like this should last several life times. Think Stradivarius
The Fingerboard is cut from a fantastic highly figured sample of Snakewood..perhaps one of the finest that can be found on the planet. It would be almost, if not totally, impossible, to obtain a snakewood blank of this length and has no fills/cracks/voids, which you will find in almost all snakewood fingerboards approaching this length today. That is…if you could even find one at all (yes, its really that rare!). This piece of wood alone increases the value & singularity of this instrument many-fold as the Snakewood tree is rather small, with trunks typically ranging from 12 inches to 20 inches in diameter. The sapwood takes up a good portion of the wood, so it’s rare to find a piece that is wider than 6 inches of clear heartwood. It is also difficult to dry, and it shrinks a great deal and is prone to cracking and checking. But all that is worth it – it’s a stunning wood, with the reddish-brown color and near black figure. When paired with the gorgeously figured California Claro Walnut, it is stunning.

It is a 30 note fretless 4 string with individual scale lengths for each string.
The Body, top and back as well as the headstock overlay and cavity cover are constructed of insanely figured AAAAA Claro Walnut.
Top and Back are wonderfully book matched.
The Body Core is a superb quarter-sawn AAAAA Sitka Spruce.
The Neck-Thru Is a 7 piece construction comprised of quarter-sawn Wenge and 3 Western Flame Maple stringers.
The Truss Rod is a 2 way, double action.
The Finger Board is a fantastic piece of Snakewood (a very exotic & very rare of the hardest, densest woods on the planet).
The Heel Thickness block is composed of Western Flame Maple and Purple Heart.
The pickups are high-performance neodymium BL-4 Q-Tuners, hand made by Erno Zwaan (For more information, have a look at They are passive, are wired independantly, and each pickup has one 500k audio taper pot with it’s own output jack. This enables operation into two seperate sound systems…one for each pickup.
The Saddles and Pickups are hard mounted into the wood.
The Tuners are Gotoh.
The Bridges are ABM independant type.
All the hardware is gold and is high quality.
The finish is clear high gloss.
My purchase included a TKL case, strap locks, and adjustment tools for the truss rod, pickups and bridge saddles.

Hard times have forced us to sell this one of a kind functional work of musical art. This was my dream bass, and I know I will not ever have one like this again…it was a once in a lifetime event. While I cannot now pass it on to my son, I can at least pass it over to a good home where it will be as appreciated as it is by me.The Jamal Ursa Major +, 4-String Fretless Bass.

The Jamal Ursa Major +, 4-String Fretless Bass.
The Jamal Ursa Major +, 4-String Fretless Bass.The Jamal Ursa Major +, 4-String Fretless Bass.
The Jamal Ursa Major +, 4-String Fretless Bass.
The Jamal Ursa Major +, 4-String Fretless Bass.