GK-3 - What is the Normal Guitar Pickup signal path?

Started by Elantric, March 09, 2016, 08:23:18 AM

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Elantric

As a reference: The Normal Guitar signal flow goes like this:

1 ) Normal Guitar pickups on your guitar will feed a guitar mounted GK-13 Preamp driver board (Roland, Ghost, RMC) .

2 ) Inside the GK-13 Preamp driver board is an op amp buffer that performs a Hi Z to Lo Z impedance conversion, whose output feeds GK13 cable pin #7. 

3 )  The 13 pin GK cable from your guitar feeds the GK IN" jack, and pin #7 from your 13 pin cable has the "low Z" Normal Guitar signal that enters the GK Processor (VG-99 / GR-55 / GP-10)

STEP#4: Due to the low impedance of the internal "normal guitar signal path" inside the 13 pin cable (as a result of Step # 2) If you create an FX Insert point, you must use an active signal buffer between your Guitar and the Pin#7 signal connection.

Using an ordinary Boss pedal works as a HiZ to Low Z signal buffer for this function ( I use a Boss TU-3 Tuner), but many other pedals work too - Ibanez Tube Screamers, Boss  CS-3 Compressor, DS-1 distortion, etc, as used in my US-20 "magic Box" mod. If you use FX which feature "True Bypass" - you will need to add a Hi Z to Low Z buffer circuit to feed the Normal PU path on the target processor (VG-99 / GR-55)