Bartolini 4 String Washburn® Replacement W4CBC Bass Pickups

Transformed my Warwick Streamer Standard—Incredible tone and versatility!

I bought these Bartolini pickups as an upgrade for my Warwick Streamer Standard. Along with the pickup swap, I converted the bass to a fully passive setup using a standard 2-Volume / 2-Tone configuration, combined with the 3-way toggle wiring (Inner Single-Coil / Series Hum-Canceling / Outer Single-Coil) from the official Bartolini diagram. This modification has completely transformed my bass. The pickups sound beautiful on their own, and when combined with this specific wiring, they provide endless tonal variety. Additionally, the string-to-string and neck-position output is incredibly balanced; no matter where I play on the fretboard, the volume remains completely even with no harsh peaks or dead spots. I highly recommend them! A few important warnings for anyone doing this specific upgrade on a Warwick Streamer Standard: 1. Watch the pickup springs: The stock MEC pickups have a completely flat bottom with no exposed wires. However, the Bartolinis have wires routed along the bottom of the housing. You need to be careful with your pickup spring placement during installation to ensure they don't press directly against or pinch these wires. 2. Pickup cavity fit: If you are looking for a flawless, tight aesthetic fit, be aware that the corner radius on the Bartolinis doesn't perfectly match the stock MEC pickups or the body cavities. It still looks perfectly fine to me and isn't a dealbreaker, but it's worth noting. On the plus side, the mounting screw holes line up perfectly.

Bartolini humbuckers

Put these in a Fernandes FAB-170 and they absolutely sing! Added the single coil/single hum/parallel hum and there are huge tonal differences between each position. Not sure I would use all but I have them in now. These guys, Fat Bass Tone, totally hooked me up. No one else had anything like these.