The Ibanez RGB300 is a 4 string bass with an active EQ and 22 frets!
Description of EQ
The bass boost/cut frequency curve has a peak at 20 Hz and a variable width that decreases toward the high range, and a curve that the variable width becomes zero at approximately 1000 Hz. The variable range becomes slightly larger in the high range than around 1000 Hz, but it becomes zero again near 5000 Hz. The variable range of the peak frequency is approximately ±15 dB. The treble boost/cut frequency curve creates a bell-shaped curve with a peak around 10000 Hz and zero variable range around 100 Hz. The variable range of the peak frequency is approximately ±15 dB.
Description of controls
With the bass held in the playing position, there are two small knobs located along the lower edge of the body. The knob close to the end of the body is the treble boost/cut knob, and the one closer to the neck is the bass boost/cut. Above these, there are two more knobs closer to the bridge. The one closest to end of the body is the pickup balancer, and the other is the volume knob. You can adjust piezo gain for each strings with the trim pots located on the back panel. Turn the trim pot clockwise with a Philips head screwdriver to boost the gain, and turn the trim pot counter clockwise to cut the gain. The trim pots are lined up in order of the strings.
SPECS
neck type: RGBMaple neck
top/back/body: Poplar body
fretboard: Jatoba with Sharktooth inlay
fret: Medium frets
number of frets: 22
bridge: B10 bridge
string space: 19mm
neck pickup: Dynamix P neck pickup Passive
bridge pickup: Dynamix J bridge pickup Passive
equalizer: Ibanez Custom Electronics 2-Band EQ
factory tuning: 1G,2D,3A,4E
strings: D’Addario® EXL165
string gauge: .045/.065/.085/.105
hardware color: Black
NECK DIMENSIONS
Scale : 864mm/34″
a : Width 41mm at NUT
b : Width 62mm at 22F
c : Thickness 21mm at 1F
d : Thickness 22mm at 12F
Radius : 305mmR