The Classic Stack Plus bridge pickup looks and sounds like a true Stratocaster single coil but none of the traditional Strat hum. It has all of the sparkle and chime that you would expect from a vintage Strat pickup. It has a special bottom coil that actually injects negative hum into the pickup circuit, and, at the end of the production process, we fine tune each pickup for maximum noise cancelation. You get all the great qualities of a classic Strat pickup, and none of the hum. Pair with our Stack Plus middle RWRP and neck for a complete and quiet set.Hand built in Santa Barbara, CA, it uses hand ground alnico 5 rod magnets, and comes with a splittable 3-conductor lead wire to give you access to true single coil operation. Each is wax potted for squeal free performance. Three-conductor cable allows splitting for true single coil mode. When three STK-S4s are all split, the middle pickup is RW/RP allowing hum-cancellation when used with the neck or bridge pickup. For most Strat guitars, the Stack Plus is a direct retrofit. The Stack Plus is .995” (25.27mm) tall, which makes it .175 (4.45mm) taller than a vintage pickup for Strat guitars. Each Stack Plus is built and tuned, by hand, in Duncan’s Santa Barbara, California workshop and includes mounting hardware and detailed wiring instructions.