Fulltone GT500 User Manual
Page 2

Specifications:
Maximum Current Draw 14 milliamps (all knobs cranked)
Weight= 1 pound 8 ounces
Size= 5 ¾” (left to right) x 3 7/8” deep x 2 ½” height (top of Knobs)
Distortion Channel
Input impedance = 150K
Output impedance = 15K
Boost/OD Channel
Input impedance = 500k ohms
Output impedance = 600 ohms
*GT-500 Gain Figures powered with 9 volts DC
Volume control at 100% using 440hz Sine Wave with 8 mV of input level.
Distortion Channel
Distortion Knob Position
/ Gain x / dB
7 o’clock
7.50 17.50
9 o’clock
28.75 29.17
12 o’clock
72.50 37.20
3 o’clock
81.25 38.20
5 o’clock
87.50 38.84
Boost/OD Channel
Drive position
/ Gain x / dB
7 o’clock
7.00 16.90
9 o’clock
8.00 18.06
12 o’clock
13.75 22.76
3 o’clock
31.25 29.89
5 o’clock
67.50 36.59