Duncan's Most Popular High-output Humbucker The JB Model SH-4 is one of Seymour Duncan's — and the world's — most popular pickups and provides the classic sound of a hot-rodded humbucker that we've all loved for the last 30 years. Boasting plenty of output without sacrificing tone and adding the right amount of harmonics, sustain, and distortion, the JB Model SH-4 is great for anything from heavy blues to heavy metal — with an emphasis on heavy! But excelling at aggressive music isn't all the SH-4 can do, as it cleans up nicely providing warm, sweet tones. The JB Model SH-4 is built for great tone!Classic hot-rodded humbucker sound The archetype hot-rodded humbucker for over 30 years, the JB Model SH-4 is great for everything from heavy blues to heavy metal. As the world's most popular humbucker, the SH-4 provides slammin' output while retaining singing highs, aggressive harmonics, and just