im buying this pedal off craigslist and i wondered to know if its really the one with the jr4558 chip in it. Its serial number is 227911
ESP KH-202 emg-hz
ESP KH-502, duncan custom 5, duncan 59
1978 alverez acoustic
Peavey valveking 100 head
line 6 4-12 cabinet
EVH flange, wilson q-wah, boss chorus ensemble, dunlop brick power supply
idk... Lol. But you can probably just e-mail Ibanez. They should be able to help you.