Product images are provided for reference and may not represent the exact model, configuration, or included components.

At A Glance

Neck Type
Atlas-5 / 5pc Panga Panga/Purpleheart neck w/KTS TITANIUM rods
Top/Back/Body
Poplar Burl top / African Mahogany body
Fretboard
Bound Panga Panga fretboard / Abalone oval inlay
Fret
Medium frets / Premium fret edge treatment
Number of Frets
24
Bridge
MR5S bridge
String Space
16.5mm
Neck Pickup
Nordstrand Big Single neck pickup (Passive)
Bridge Pickup
Nordstrand Big Single bridge pickup (Passive)
Equaliser
Ibanez Custom Electronics 3-band EQ w/ EQ bypass switch (passive tone control on treble pot) & 3-way Mid frequency switch
Factory Tuning
1G,2D,3A,4E,5B
Strings
D'Addario EXL165 + .130
String Gauge
.045/.065/.085/.105/.130
Nut
Graph Tech BLACK TUSQ XL nut
Hardware Color
Black
Scale
864mm/34"
A : Width
45mm at NUT
B : Width
68mm at 24F
C : Thickness
19.5mm at 1F
D : Thickness
21.5mm at 12F
Radius
305mmR
Finish
Tropical Seafloor Flat
Description

Ibanez built the SR1605BTSF as part of the SR Premium Series, a five-string electric bass positioned in the upper tier of the SR line. The model carried Nordstrand Big Single passive pickups at both neck and bridge positions, paired with Ibanez Custom Electronics active three-band EQ that included an EQ bypass switch — allowing the instrument to be played fully passive — and a passive tone control on the treble pot. A three-way mid-frequency switch gave the player additional tonal shaping beyond a standard bass/mid/treble stack.

The neck was an Atlas-5 five-piece construction using Panga Panga and Purpleheart timbers, stabilised by KTS Titanium rods. The bound Panga Panga fretboard carried abalone oval inlays, 24 medium frets with premium edge treatment, and a 305mm radius. Nut width measured 45mm, width at the 24th fret 68mm, and thickness ran 19.5mm at the first fret rising to 21.5mm at the twelfth, across a 34-inch scale. The MR5S bridge was set to a 16.5mm string spacing. The body combined an African Mahogany core with a Poplar Burl top, finished in Tropical Seafloor Flat. Hardware throughout was black. The instrument shipped strung with D'Addario EXL165 strings gauged .045/.065/.085/.105/.130, with the factory tuning B–E–A–D–G.

Owners seeking replacement parts — including the Graph Tech BLACK TUSQ XL nut, MR5S bridge components, or Nordstrand Big Single pickups — or requiring setup and fret work should consult a qualified guitar technician or luthier familiar with multi-string bass instruments.

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