ABOUT NORDSTRAND FAT STACKS:
These are a proprietary Nordstrand design. The traditional bi-pole magnet layout was, literally, twisted in a new direction. By rotating the pole 45 degrees for each set we have increased the size of the traditional J style coil by 50%, making it wider, or "fatter". This results in a larger aperature, which captures more harmonic content from the string, resulting in a "fatter" tone. These pickups have a tone reminiscent of a J style single coil, but they are bigger and bolder. Full range and a present but pleasant high end response. These pickups have a great deal of midrange detail and fullness. Due to the naturally lower output of this design, these pickups can sometimes benefit from a pre-amp with 3 or more db of gain.
These pickups are shipped with three conductor wire for a split-able installation. When the third lead is shorted to ground only the top coil will remain active for a louder, more aggressive and mean version of the fat tone these pickups deliver (albeit with 60 cycle noise that single coils inherently possess). Think of it as a turbo charger for tone!