The SH/TB-4 JB is – no joke – THE most popular replacement pickup ever. No, no just the most popular in the populous Seymour Duncan humbucker lineup, but the most popular aftermarket pickup available. Has been for 30 years. Seriously, that top shouldn’t be open for debate, really. A certain British guitarist with the same initials was known to have used one of the originals in the 70s, and since then it’s been a staple of rock music. Other pickups can only get in the neighborhood of the iconic nature of the JB. It’s everywhere, whether you know it or not, and for good reason. It’s all over more classic and current recordings than you can begin to imagine, so cool is this pickup. It is, in fact, the SOUND of ROCK.