2019 GSRM20B WNF 1P 02 en 1
GSRM20B Walnut Flat (more images) Red copyright sprite

The GSRM20B is a short scale Soundgear series solid body electric bass model introduced by Ibanez in 2015. It has been made in both China and Indonesia as part of the entry level GIO line.

The GSRM20B features a double-cutaway mahogany body bolted to a 28.6" scale maple neck with a 22-fret rosewood fingerboard with white dot position markers. Components include a pair of Ibanez Powersound pickups with a jazz pickup at the bridge and a precision pickup at the neck, a B10 bridge with 19mm string spacing, a plastic nut and Ibanez tuning machines.

For 2017 the Powersound pickups were replaced with Dynamix. For 2018 the rosewood fingerboard was replaced with treated New Zealand pine or Jatoba, depending on the market. For 2019 the body material was changed to okoume. For 2020 the fretboard material was again changed, this time to purpleheart.

The GSRM20 is a similar model with chrome hardware.


Specifications for GSRM20B
Year(s) produced: 2015–2020
Sold in: Asia & Africa / China / Europe / USA
Made in: China (2016–2017) / Indonesia (2015–2020)
Finish(es): Walnut Flat (WNF) / Weathered Black (WK)
Body type:
Solid body
Body material:
2015–2018: Mahogany
2019–2020: Okoume
Neck joint:
B10 fixed (19mm string spacing)
Knob style:
Hardware color:
Neck type:
Neck material:
1-piece maple
Scale length:
726mm / 28.6"
Fingerboard material:
2015–2017: Rosewood
2018–2019: Treated New Zealand pine or Jatoba
2020: Purpleheart
Fingerboard inlays:
White dot
22 / medium
Plastic (38mm)
Machine heads:
Ibanez die-cast
Electronics/ Strings
Pickup configuration:
Bridge pickup:
2015–2016:Ibanez Powersound J (J) passive
2017–2020: Ibanez Dynamix J (J) passive
Neck pickup:
2015–2016:Ibanez Powersound P (P) passive
2017–2020: Ibanez Dynamix P (P) passive
Two volume / master tone
Output jack:
¼" stereo barrel (side mounted)
String gauge (factory):
Factory tuning:


Additional finishes/ details
2019 GSRM20B WK 1P 02
Weathered Black
Controls 2VT GSR
Controls layout
GSRM20 size comparison
Comparison between miKro and full-size bass


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