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At A Glance
- Neck Type
- GWB / 3pc Maple neck
- Top/Back/Body
- Basswood body
- Fretboard
- Ebony fretboard / Off-set white dot inlay
- Fret
- Fretless
- Bridge
- Std. bridge
- String Space
- 16.5mm
- Bridge Pickup
- SFR-GWB bridge pickup (Passive)
- Equaliser
- EQB-GWII 2-band EQ
- Factory Tuning
- 1G,2D,3A,4E,5B
- Strings
- D'Addario EXP165-5
- String Gauge
- .045/.065/.085/.105/.135
- Hardware Color
- Black
- Scale
- 864mm/34"
- A : Width
- 45mm at NUT
- B : Width
- 68mm at 24F
- C : Thickness
- 19mm at 1F
- D : Thickness
- 21mm at 12F
- Radius
- 305mmR
- Finish
- Black Flat
Ibanez produced the GWB35BKF as part of the GWB Signature Series, a fretless electric bass line developed in collaboration with a signature artist. The instrument sat within Ibanez's dedicated signature bass programme, positioned for players seeking a fretless instrument with purpose-built tonal and ergonomic specifications.
The GWB35BKF was built on a basswood body with a three-piece maple neck and an ebony fretboard carrying off-set white dot inlay — a practical choice on a fretless instrument, where the dots serve as position markers rather than fret indicators. The neck measures 45mm at the nut and 68mm at the 24th position, with a thickness of 19mm at the first position and 21mm at the twelfth, over a 305mm radius. The 34-inch scale runs to 864mm. The five-string configuration is set up from the factory in standard B-to-G tuning and strung with D'Addario EXP165-5 strings gauged .045/.065/.085/.105/.135 at a 16.5mm string spacing. The passive SFR-GWB bridge pickup feeds the EQB-GWII two-band EQ. Hardware throughout is finished in black, matching the Black Flat body finish.
Owners sourcing replacement parts — including the SFR-GWB pickup, EQB-GWII preamp components, or the standard bridge — should verify compatibility against their specific instrument before fitting. A qualified luthier or bass technician can assist with setup, fretless fingerboard maintenance, and component matching.
STRAIGHT TALK
What Stands Out
Keep In Mind
From the people who own them
Nothing in The Vault is for sale. These records exist so the instruments stay documented after the manufacturer moves on — and the most useful part of that record is what owners add to it.
Owner photos
Put yours on the record.
The catalog shot showed one finish, under one light, a long time ago. Yours has been played. Photos from owners are what the next person finds when they are trying to identify a part, match a finish, or work out whether the one they just bought is really what the seller said it was.
What do you know about this one?
Specs only go so far. What actually fits, what breaks first, what the factory got right and what everyone ends up changing — that lives with the people who own them, not in a datasheet. Post what you know and it stays on this page for whoever comes looking next.
Build Your Complete System
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Gear Help, Handled
From spec questions to full builds — players who have lived this gear since 2007.
Since 2007
Fit & Compatibility
- Bridge, tuner, and nut fit confirmed for your guitar
- Pickup and electronics compatibility checks
- Pedal power and amp/cab impedance matching
Mods & Upgrades
- Upgrade paths for the guitars you already own
- Wiring, routing, and hardware swap guidance
- Advice from people who actually do the mods
The Vault
- Discontinued and EOL guitars kept on record
- Specs, history, and known part compatibility
- Share your builds and mods with the community
