Acoustic Bass Guitar

Ordering a custom Acoustic Bass Guitar (A.B.G.) from our workshop offers a truly unique and personal experience. You have the freedom to choose from a wide range of woods, styles, and exquisite inlay materials.

Alternatively, if you prefer not to wait, you can explore our collection of available guitars

We create our basses in the following versions:


Opus Prime

Crafted from carefully selected master-grade woods, the Opus Prime offers a beautiful and refined sound. This model reflects our dedication to superior craftsmanship and attention to detail.


Opus Virtuoso

The Opus Virtuoso is made from rare, one-of-a-kind master-grade woods, delivering an even richer and more dynamic sound. It exemplifies our commitment to pushing the boundaries of quality. Each Opus Virtuoso includes the exclusive ‘Amber-Line’ inlays at no additional cost.


Opus Magnum

Our Opus Magnum, meaning ‘our greatest work,’ stands as a true one-of-a-kind masterpiece. Featuring ancient wood species, mammoth ivory, and genuine Baltic amber, it delivers the best possible sound. This model includes all of our patented and innovative solutions in the price, representing the pinnacle of our craftsmanship, designed for those seeking an extraordinary, unparalleled instrument.


Base SpecificationOpus PrimeOpus VirtuosaOpus Magnum
Patented NeckAcoustic Tubes with African Ebony outletsAcoustic Tubes with African Ebony outletsAcoustic Tubes with mammoth bone outlets
Innovative Soundboard ConstructionWAVE type resonatorS-WAVE type resonatorX-WAVE type resonator
Innovative Back&Sides ConstructionAcoustic Resonance System (ARS)Acoustic Resonance System (ARS)X - Acoustic Resonance System (X-ARS)
Patented BridgeBlack Ebony Bridge with Drilled Holes, adorned with authentic bone and Master Grade African Ebony inlaysBlack Ebony Bridge with Drilled Holes, adorned with authentic bone and Master Grade African Ebony inlaysFlamed Ebony Bridge with Drilled Holes, adorned with authentic mammoth bone and natural Baltic amber inlays
Patented Sides JointSigmoidal Joint of the SidesSigmoidal Joint of the SidesSigmoidal Joint of the Sides
Patented Translucent Head-*Amber HeadLight available with Signature Amber UpgradeAmber HeadLight
Patented Translucent Back Rosette-*Amber BackLight Rosette available with Signature Amber UpgradeAmber BackLight Rosette
Double-TopAlpine Spruce from Tirol / Western Red CedarAlpine Spruce from Tirol / Old-growth RedwoodAncient Kauri (ca. 50 000 years old with a certificate of authenticity) / Old-growth Flamed Redwood
Back&SidesBolivian Rosewood with sapwoodCalifornia Black Walnut BurlAncient Kauri (ca. 50 000 years old with a certificate of authenticity)
Scale32" / 34"32" / 34"32-34"
Nut41 mm (1 5⁄8"), hand-shaped and polished authentic bone41 mm (1 5⁄8"), hand-shaped and polished authentic bone41,5 mm (1 5⁄8"), hand-shaped, polished and semi-scalloped authentic mammoth bone
SaddleHand-shaped and polished authentic boneHand-shaped, polished and semi-scalloped authentic boneHand-shaped, polished and semi-scalloped authentic mammoth bone
SoundholeCentral soundhole with rosette embellished with Bolivian Rosewood and two bone crown logos, OR single offset soundhole with rosette encrusted with Bolivian RosewoodCentral soundhole with rosette embellished with Black California Walnut Burl and two Baltic amber crown logos, OR single offset soundhole with rosette encrusted with Black California Walnut BurlCentral soundhole with rosette embellished with authentic mammoth bone frame, natural Baltic amber plates and two mammoth molar crown logos, OR single offset soundhole with rosette encrusted with authentic mammoth bone frame and natural Baltic amber plate
HeadplatesDouble Bolivian Rosewood adorned with authentic bone crown logoDouble California Black Walnut Burl adorned with natural Baltic amber crown logoDouble natural Baltic amber adorned with natural white Baltic amber crown logo inlaid with three natural black diamonds
Neck WoodModified Aspen with dual-action truss rodModified Magnolia with dual-action truss rodAncient Kauri (ca. 50 000 years old with a certificate of authenticity) with dual-action truss rod
Neck ProfileTurkowiak AsymmetricTurkowiak AsymmetricTurkowiak Asymmetric
HeelAdorned with Black Ebony cap and Black Ebony crown inlayAdorned with Black Ebony cap and natural Baltic amber crown inlayAdorned with natural Baltic amber cap and natural Baltic amber crown inlay
FingerboardBlack Ebony, 16" compound radius, elevatedBlack Ebony, 16" compound radius, elevatedFlamed Ebony, 16" compound radius, elevated
Fingerboard side markersAuthentic bone ⌀2 mm at 3, 5, 9, 15, 17, 19 frets and ⌀3 mm at 7, 12 (double) fretsAuthentic bone ⌀2 mm at 3, 5, 9, 15, 17, 19 frets and ⌀3 mm at 7, 12 (double) frets inlaid with natural Baltic amberNatural white Baltic amber ⌀2 mm at 3, 5, 9, 17, 19 frets and ⌀3 mm at 7, 12 (double) frets inlaid with natural Baltic amber
Frets21/24 frets21/24 fretsTrueTemperament 21/24 frets (up to C#)
Frets material18% Nickel-Silver Extra-Jumbo (Bass)18% Nickel-Silver Extra-Jumbo (Bass)EVO-GOLD (nickel-free)
Tuning MachinesSingle Schaller Mini BlackSingle Schaller Mini GoldTurkowiak Hidden-Mechanism tuners with natural Baltic amber buttons, natural Baltic amber engraved plate
Comfort*Optional Arm-Bevel and Rib-bevel integrated with the guitar bodyArm-bevel integrated with the guitar body; *Optional: Rib-bevelAmber Arm-bevel and Rib-bevel integrated with the guitar body
VarnishHighly-resonant (own-recipe), anti-static, hand-polished, high-glossHighly-resonant (own-recipe), anti-static, hand-polished, high-glossHighly-resonant (own-recipe) extra-thin, anti-static, anti-bacterial, hand-polished, high-gloss with 24Ct Gold Dust
Modal Tuning-Body Fine-TuningFine-Tuning of each piece
Pickguard*Optional (plan wood or transparent)*Optional (burl wood or transparent)*Optional (Transparent-Wood)
Thumbrest*Optional*Optional*Optional
HardcaseBrand, fitted to the ABGBrand, fitted to the ABGHighest-quality custom-made authentic carbon fiber fitted to the ABG
WarrantyLimited LifetimeLimited LifetimeLimited Lifetime
LabelTurkowiakTurkowiakTurkowiak with dedication
Video Sound Sample--Recorded by professional well-known musician
Accessories*Optional Turkowiak Guitar Maintenance kit with Two-Way Humidity Control Device*Optional Turkowiak Guitar Maintenance kit with Two-Way Humidity Control DeviceTurkowiak Guitar Maintenance kit with Two-Way Humidity Control Device