Carefully inspected and professionally set up by our luthier workshop, this upright bass is a brand-new instrument.

Original cardbox, Ibanez Premium gigbag, Tama Roadpro stand, and all original accessories included.

IBANEZ UB804-MOB Mahogany Oil Burst Electric Upright Bass

• Bass Workshop Upswing Series
• Serial: I260303080
• Weight: 3.600 kg
• 4-String Fretless Electric Upright Bass
• Neck-Through Construction
• Maple Wing Body
• 5-Piece Maple/Walnut Neck-Through
• UB4 Neck Profile
• Jatoba Fingerboard
• White Dot Inlays
• Scale Length: 864 mm (34")
• Nut Width: 42 mm
• Width at 22nd Position: 84 mm
• Neck Thickness at 1st Fret: 35 mm
• Neck Thickness at 12th Fret: 42 mm
• Compound Fingerboard Radius: 60–90 mm
• Ibanez AeroSilk Piezo Pickup
• Active Piezo System with Tone Control
• Controls: Volume / Active Tone
• Individual String Gain Adjustment via Internal Trim Pots
• Custom AeroSilk MR5 Bridge
• String Spacing: 30 mm
• Matte Black Hardware
• Factory Strings: D'Addario ECB81 45-100

For more than 60 years, Ibanez has established itself as one of the world's leading guitar and bass manufacturers, constantly pushing the boundaries of instrument design. From cutting-edge models embraced by world-renowned virtuosos to the bold creations of the acclaimed Bass Workshop series, Ibanez has always pursued innovation and sonic exploration. With the UB804, the Japanese brand delivers a truly distinctive instrument that steps far beyond the conventions of the traditional electric bass.

Electric upright basses remain relatively rare on today's market and are often overlooked by many musicians. The UB804 stands out as an exceptionally well-executed model, appealing equally to adventurous bass players seeking new tonal possibilities and upright bassists looking to retain authentic playing sensations without the size and limitations of a traditional acoustic instrument.

Its sleek, minimalist design immediately catches the eye. Free from the imposing dimensions of a full-sized upright bass, the UB804 nevertheless possesses a striking visual presence and a unique personality. The warm and elegant Mahogany Oil Burst finish perfectly complements its refined aesthetics, giving it the appearance of a truly premium and uncommon instrument.

Construction quality fully reflects the ambitions of the Bass Workshop series. Its 5-piece maple and walnut neck-through design provides exceptional stability, outstanding sustain, and impressive resonance, while the maple wing body and jatoba fingerboard create a beautifully balanced tonal character with excellent clarity, harmonic richness, and remarkable playing comfort.

At the heart of the UB804 lies the innovative AeroSilk Piezo system. Ibanez developed this active electronics package specifically to reproduce the natural openness and organic response associated with acoustic upright basses. The result is a full-bodied, expressive sound with impressive depth and warmth, making it equally at home in jazz, classical music, theatre productions, fusion, or contemporary live performances. The system also performs beautifully whether played pizzicato or with a bow, offering an exceptionally wide range of musical expression.

Its familiar 34-inch scale length makes the transition effortless for electric bass players, while the fretless fingerboard rewards precision with unmatched expressiveness. Smooth slides, singing vibrato, subtle dynamics, and nuanced articulation all become part of the instrument's natural voice, allowing every note to feel alive and deeply personal.

One of the UB804's greatest strengths is its versatility. It captures much of the character and feel of a traditional upright bass without the inconvenience of transporting a large acoustic instrument. It is equally suited to recording studios, live stages, pit orchestras, musical theatre, and any performance where space is limited. More importantly, it inspires creativity and encourages players to explore entirely new musical ideas.

The UB804 is far more than simply an alternative to a traditional upright bass—it belongs to the rare category of hybrid instruments capable of offering a genuinely fresh sonic identity. Few instruments on today's market achieve such a convincing balance of authentic upright character, modern playability, and outstanding build quality.

An original, elegant, and deeply musical creation from Ibanez, the UB804 is destined for adventurous bassists, jazz enthusiasts, professional performers seeking a distinctive voice, and anyone looking to own an instrument that truly stands apart. This is not an instrument chosen solely for its specifications—it is chosen because it opens the door to an entirely new level of musical creativity.