Alex C
Inspired
I'm the proud owner of a Carvin/Kiesel DC727 that I received about two years ago and I've been very pleased with it. I ordered it just before the Lithium humbuckers were available, but I was able to get a late prototype version of them, which I'm also pleased with and which are still in this guitar even though I have a Crunchlab/Liquifire set laying around.
I ordered the guitar with individual coil-split toggle switches, and my only minor issue has been that the split single coil sounds can be a bit harsh in the upper mids and treble frequencies because the 500k volume pot is still in place when the coils are split (whereas most single-coil setups use a 250k volume pot, which rolls off some of that high end). To address this, I performed the following modification.
The spare pole on each DPDT coil-split toggle is used to switch in a fixed 470k resistor to ground at the output of each pickup, so that when a split pickup is selected the 500k volume pot has a ~500k resistor in parallel with it, which is roughly equivalent to a 250k pot. When a pickup is not split, the 470k resistor is not connected, so in humbucking mode the 500k pot is retained. Below is a diagram illustrating this. (Diagram modified after subsequent replies.)
This has really smoothed out some of the "bright honk" and "bite" of the split-coil sounds, making them a bit more Strat/Tele-like, and I can now switch seamlessly from humbucker to single coil mode without adjusting the guitar's tone control or the Axe-Fx BMT or presence.
Are there any production guitars with coil-splitting that implement something like this?
I ordered the guitar with individual coil-split toggle switches, and my only minor issue has been that the split single coil sounds can be a bit harsh in the upper mids and treble frequencies because the 500k volume pot is still in place when the coils are split (whereas most single-coil setups use a 250k volume pot, which rolls off some of that high end). To address this, I performed the following modification.
The spare pole on each DPDT coil-split toggle is used to switch in a fixed 470k resistor to ground at the output of each pickup, so that when a split pickup is selected the 500k volume pot has a ~500k resistor in parallel with it, which is roughly equivalent to a 250k pot. When a pickup is not split, the 470k resistor is not connected, so in humbucking mode the 500k pot is retained. Below is a diagram illustrating this. (Diagram modified after subsequent replies.)
This has really smoothed out some of the "bright honk" and "bite" of the split-coil sounds, making them a bit more Strat/Tele-like, and I can now switch seamlessly from humbucker to single coil mode without adjusting the guitar's tone control or the Axe-Fx BMT or presence.
Are there any production guitars with coil-splitting that implement something like this?
Last edited: