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At A Glance
- Neck Type
- SR4 / 5pc Maple/Walnut neck
- Top/Back/Body
- Maple body
- Fretboard
- Jatoba / White dot inlay
- Fret
- Fretless
- Bridge
- Accu-cast B120 bridge
- String Space
- 19mm
- Neck Pickup
- PowerSpan Dual Coil neck pickup (Passive)
- Bridge Pickup
- PowerSpan Dual Coil bridge pickup (Passive)
- Equaliser
- Ibanez Custom Electronics 3-band EQ w/3-way Power Tap switch
- Hardware Color
- Cosmo black
- Scale
- 864mm/34"
- A : Width
- 38mm at NUT
- B : Width
- 62mm at 24F
- C : Thickness
- 19.5mm at 1F
- D : Thickness
- 21.5mm at 12F
- Radius
- 305mmR
- Finish
- Brown Burst
Ibanez built the SR370EFBBT as part of the SR (Soundgear) Series, positioning it as a fretless electric bass within that line. The fretless configuration and Brown Burst finish distinguished it among SR Series offerings aimed at players seeking the expressive, singing quality associated with fretless playing.
The neck is a five-piece Maple/Walnut SR4 construction, joined to a Maple body and topped with a Jatoba fretboard carrying white dot inlays — serving as visual position markers in place of frets. The 34-inch scale runs to an Accu-cast B120 bridge with 19mm string spacing. Both the neck and bridge positions carry passive PowerSpan Dual Coil pickups, fed into an Ibanez Custom Electronics 3-band EQ equipped with a 3-way Power Tap switch — a control that alters the coil configuration of the PowerSpan pickups. Hardware throughout is finished in Cosmo black. Nut width measures 38mm, with the neck widening to 62mm at the 24th fret position; thickness runs 19.5mm at the first fret and 21.5mm at the twelfth, over a 305mm radius board.
Owners setting up this instrument or sourcing replacement components — including Accu-cast B120 bridge saddles, PowerSpan pickup covers, or fretboard-friendly strings suited to a Jatoba board — should consult a qualified luthier or bass technician familiar with fretless instruments.
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
