I'm going to be putting Graph Tech's Acousti-Phonic and Ghost Saddle system into my 8 string soon, and I'm trying to figure out the best and most cost-effective way of switching between Piezo's and Mags at speed. On one of my tracks particularly (The Epic) I'll play Acoustic in the verses, and jump immediately to heavy Rhythm tone for Choruses. The obvious method I see is a switch on the Guitar, and a footswitch for the amp, but that sounds like hassle to me.
Considering how much I love Midi, I was thinking the best way would be if I wired everything up in Stereo in the Guitar (pin 1 for Mags, pin 2 for Piezo), used a stereo cable to go from the Guitar into a G Lab LMS-1 (Midi controllable A/B box) and from there into my Amp, which I could store presets that jump between Clean with FX, and Rhythm tone at the touch of a pedal on my floorboard.
The only problem with my idea is that if I broke a string on the Graph Tech loaded Guitar and switched to another, I'd have to switch cables too, as I couldn't afford to put in more than 1 Piezo system right now, and if I connected a non-piezo Guitar to a stereo cable, it'd mess up the pins which power the EMG's.
In an ideal world, I'd either have an Axe FX, or two Gmajor2's running different settings for Mags and Piezo, but alas I don't have the funds for that either. What I'm left with is one Guitar with piezo's, one without, an ENGL Invader head, with a Gmajor2 in the loop. I would prefer not to have to cut holes in my Guitar for switching between Mags and Piezos, nor replace the Pickup switch with a 4/5/6 way if I can help it. I'd just want to press a pedal on my floorboard and it's all done. The LMS-1 seems to be the way to go ....
Any better ideas out there? lol
The only way to go is with a stereo output, with the mags going to the amp and the piezos going DI to the FOH. The MIDI-controlled A/B box is a great idea, except you really want two inputs and two outputs that can be switched.
I use this:
Here's the schematic: