Ibanez GWB1005-NTF Natural Flat Signature Gary Willis
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Manufacturer Information
Ibanez
https://www.ibanez.com
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Safety manager:
Hoshino Europe
Email: info@hoshinoeurope.com
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A Gary Willis Signature: a modern, handcrafted, and play-focused approach
The GWB1005 follows the line of signature instruments designed to meet a precise playing vision: ergonomics, consistent attack, and fine dynamic control. Its design does not seek a "showcase" effect: it favors concrete choices and useful innovations, with manufacturing claimed to be handmade and special attention paid to details.
Who is this 5-string fretless bass for?
This Ibanez is aimed at intermediate to expert bassists who want to explore the fretless 5-string: positioning, vibrato, slides, nuances, and intonation. It is particularly comfortable in jazz, fusion, groove, progressive, and all music styles where right-hand/left-hand articulation and precision make the difference.
Sound
The swamp ash offers a naturally "open" register: breathing lows, clear low-mids, and an attack that remains clear even on the B string. On fretless, the ebony fingerboard promotes a crisp and precise response, ideal for bringing out the "singing" of notes and the playing grain without losing definition. The Bartolini GWB pickup, with its curved shape, is designed for a balanced response across the strings, while the 2-band active EQ allows quick adjustment of the low-end foundation and brightness in the highs. The bypass (push/pull) on the volume enables an instant switch to a more direct approach, like a passive circuit.
Recommended Compatible Accessories
To maintain the original feel and balance, choose a 5-string long scale 34" / 864 mm string set, for example the factory-installed D'Addario EXP165-5 with gauges .045/.065/.085/.105/.135.
Technical specifications
| Left handed | No | Fingerboard | Ebony |
| Strings | Steel | Nbrs of frets | 0 |
| Nbr of strings | 5 | ||
| Type | electric bass | Bridge | standard |
| Body | swamp ash | String spacing | 0.65" / 16.5 mm |
| Neck type | GWB | Tuners | special Gary Willis headstock tuner shape |
| Construction | 3-piece maple | Hardware color | black |
| Inlays | offset white dots | Pickup (bridge position) | Bartolini GWB (passive) |
| Frets | fretless | Equalizer | Bartolini NTBT 2-band EQ with push/pull EQ bypass |
| Scale length | 34" / 864 mm | Controls | volume (push/pull EQ bypass), treble (boost/cut), bass (boost/cut) via stacked knob |
| Nut width | 1.77" / 45 mm | Finger ramp | removable, Gary Willis design |
| Width at 24th fret | 2.64" / 67 mm | Factory tuning | 1G, 2D, 3A, 4E, 5B |
| Thickness at 1st fret | 0.75" / 19 mm | Gauge | .045/.065/.085/.105/.135 |
| Thickness at 12th fret | 0.83" / 21 mm | Gig bag | included |
| Radius | 12" / 305 mm | ||
Questions frequently asked
Is the Ibanez GWB1005-NTF a 5-string fretless bass?
This model features 5 strings and a fretless ebony fingerboard, without frets. Its 34" / 864 mm scale length is paired with a factory tuning of G-D-A-E-B.
What sound does the Bartolini GWB pickup deliver?
The curved Bartolini GWB pickup is designed to maintain a consistent balance across the strings. The swamp ash body promotes airy lows and a clear attack, including on the B string.
Can the bass be used in passive mode?
The push/pull volume knob allows bypassing the Bartolini NTBT 2-band EQ. The bass and treble controls remain accessible via the stacked knob when the EQ is engaged.
What is the string spacing on this Gary Willis bass?
The bridge string spacing is 16.5 mm. The 3-piece maple neck measures 45 mm at the nut and 67 mm at the 24th fret.
Which strings are recommended for the GWB1005-NTF?
5-string steel strings suitable for a 34" / 864 mm scale length are required. The factory setup uses a D'Addario EXP165-5 set in gauges .045/.065/.085/.105/.135. A gig bag is included.
