Description
If you’ve ever felt like your bridge pickup was fighting your low end instead of supporting it, the Bartolini MK4CBC-B is worth a serious look. This MK-shaped soapbar humbucker packs a dual coil design that leans into powerful lows and low-mids while still leaving room for a bright, present treble on top — the kind of balance that keeps a bass cutting through a mix without turning brittle.
- MK Soapbar shape, sized for the bridge position
- Dimensions: 4.24″ / 107.57mm long, 1.33″ / 33.66mm wide
- Dual coil humbucking design
- Part of Bartolini’s Classic Bass series
As a Classic Bass series pickup, the MK4CBC-B is a passive unit voiced with an extended, more resonant frequency range than older-style designs. Bartolini widened the window at the top end here — more air, more definition, more sparkle on your attack — but they didn’t do it at the expense of the low-frequency weight bassists actually rely on. That’s the tricky balance a lot of bridge pickups get wrong, and it’s the reason this one’s earned a following among players who need clarity without losing thump.
Every coil is cast in epoxy, which isn’t just a manufacturing detail — it’s what keeps this pickup quiet on stage. Feedback and microphonics get shut down before they become a problem, so you can dig in at volume without the pickup talking back.
Whether you’re pairing it with its matching neck pickup or dropping it into an existing setup that needs more definition at the bridge, the MK4CBC-B is built to hold its own night after night.







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