Separate hex pickup from GK-3 controls

Started by justinmorell, January 21, 2024, 11:01:08 AM

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justinmorell

I'm sure this must have been addressed on the forum somewhere, and I can't seem to find the right way to search for it, but is it possible to separate the hex pickup of a GK-3 from the rest of the controls, and then run a long 6-conductor cable from the guitar to the GK controls, say, down at a pedalboard or something?  Would there be some significant loss of high end running the pickup cable that long?  I almost never use the knob or the switches on the GK-3 and hate the extra bulk on the guitar.  Thanks,

Justin
justin

GR-55, VG-99

gumtown

It is possible but the results would be undesirable with lots of hum and noise.

The GK-3 circuit board has a hex preamp which its secondary function also changes the pickup output impedance down to around 150 ohms for better noise immunity down a GK cable.

If you remove/relocate the electronics and the GK3, then you will need to install a multi pin socket on the guitar to carry the 6 GK signals, 1 x normal pickup signal (which is also converted to low impedance on the GK-3 circuit board, and a ground wire, and all encased in a shielded cable.

The GK-KIT-GT3 internal kit makes more sense if your guitar cavity has room to fit one, and you don't mind drilling in a GK socket.
Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/

gumtown

Another option is to install the new GK-5 pickup, it has no on-board controls, and uses a TRS 1/4" jack data cable.
You would then plug that into a GKC-DA converter box on the floor, where your GK cable comes out of, and into your GR-55.

https://www.boss.info/us/products/gk-5/

Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/

justinmorell

Quote from: gumtown on January 21, 2024, 11:15:51 AMAnother option is to install the new GK-5 pickup

Really? I didn't know that, thanks. Do you know if that will offer the same performance with modeled sounds? I ask especially because I have my first VG-99 on the way. :-)
justin

GR-55, VG-99

gumtown

Quote from: justinmorell on January 21, 2024, 02:09:25 PMReally? I didn't know that, thanks. Do you know if that will offer the same performance with modeled sounds? I ask especially because I have my first VG-99 on the way. :-)

There should be no performance differences, just that the GK-5 hex strings are digitized at the guitar, and the signal from the guitar is the new GK Serial format transported over a 2 wire data cable which uses stereo type 1/4" jack plugs.
To connect that to a VG-99 which uses the legacy 13 pin analog system, a converter module is required, to convert GK Serial to GK 13 pin.
This also needs a second cable from your guitar if you use/require the guitar normal pickups, and plugs into the GKC-DA converter to send normal P.U wit the GK hexaphonic signal.

It is a significant added expensive needing the GKC-DA converter for backward compatibility.
Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/