When wired into your guitar (rewiring of tone controls may be required), this control removes the load of the pots. Think of it as a knob that goes from 0-10, plus a switch to 11—there's an actual click!
The JackPot's rotary switch clicks on when the knob reaches full rotation. The open switch lifts the ground to the pot, eliminating the load on the pickups and letting the full signal reach the output jack. When the knob is rotated counterclockwise, the ground to the pot is reconnected, so the pot returns to standard operation.
"On my Tele I get a brighter, more aggressive sound that is more sensitive to my picking style and attack!"
—Casey Davis, guitarist and StewMac customer service rep
Why do you want it?
With the JackPot you can play full on, with the pickups wired directly to the output jack. You'll still have a trusty volume knob to back off instantly to a lower level when needed.
The JackPot produces a stronger signal level, greater warmth, more intensity.
On typical instrument wiring, when the volume knob is maxed out, there is still a portion of the signal that bleeds to ground. The output level never reaches the full level the pickup would achieve if it were wired directly to the output jack.
6mm split shaft, coarse knurling
M8 x 0.75
Threaded portion height
Required mounting hole diameter
Two mounting nuts, flat washer and lock washer included
U.S. Patent No. 8,253,007
Which pot value should you choose?
500K pots are standard controls for humbuckers, and 250Ks are usually used for single-coil pickups. A 250K gives a slightly warmer tone than a 500K, and bleeds off some of the high frequencies to ground. A 1-meg pot bleeds off even less than a 500K.
1-meg pots are also ideal for piezo pickups, as the ultra high impedance piezo element is more adversely effected by conventional, lower-value pots than magnetic pickups.