When the Jag is in passive mode the preamp is bypassed, and if you want to you can just remove the battery. Also if your ever interested the Nordstrand 2B preamp will drop right in, you just have to change the the stock 500k mini pots for 50k ones. Here's my Jag, I've got to know these beasties inside and out!
My Mods are:
BEAD Tuning
Fender CS '60s pickups
Nordstrand 2B preamp -
NEW
Concentric Vol/Tone & Balance Pots
Concentric Jazz style knobs
CTS Pots & Switch's
Copper Shielding + Star grounding
Deluxe 5 bolt neck plate + Heel contour
Schaller strap locks
Hipshot Ultralite Tuners
Unbleached Bone Nut
Badass II Bridge
Rolled fretboard edges
Rotosound RS66LH strings
Racing Stripe -
NEW
And finally used a ScotchBrite pad on
the back of the neck to take the edge
off the gloss
Pics:
Front
Back
Stacked Vol/Tone + Blend