The Ibanez GSRM20BK is mini sized 4 string bass with a full size tone!
SPECS
neck type GSRM4 Maple neck
top/back/body Poplar body
fretboard Jatoba fretboard (RBM,TR,PW finish) or Purpleheart fretboard (BK,BS,MPL,SLB finish)White dot inlay
fret Medium frets
bridge B10 bridge
string space 19mm
neck pickup Dynamix P neck pickup Passive
bridge pickup Dynamix J bridge pickup Passive
factory tuning 1G,2D,3A,4E
string gauge .045/.065/.085/.105
hardware color Chrome
NECK DIMENSIONS
Scale : 726mm/28.6″
a : Width 38mm at NUT
b : Width 58.5mm at 22F
c : Thickness 21mm at 1F
d : Thickness 22mm at 12F
Radius : 305mmR (RBM,TR,PW finish) or 350mmR (BK,BS,MPL,SLB finish)
With the bass held in the playing position, from the end of the body towards the direction of the neck, the controls are, tone, bridge pickup volume, and neck pickup volume.