The pickup is well known both for high output and clarity. The design is a combination of a unique winding and a ceramic magnet placed under the pickup to give you more of everything and caused many players to give up active pickups. With lots of gain on your amp, harmonics is a piece of cake. The powerful high output M model humbucker let your notes come through even with lots of distortion on your amp. The pickup has lots of low end. Default is nickel slugs. Black threaded slugs are optional.