Seymour Duncan Humbucker SRB-1B Rickenbacker Bridge Pickup

Seymour Duncan SRB-1B Rickenbacker Bridge Pickup

The SRB-1B is a purpose-built bridge pickup engineered specifically for 4-string Rickenbacker 4003 basses, capturing the classic jangly, articulate tone that defines the instrument while delivering modern tonal flexibility for studio recording. This humbucking design replaces the stock horseshoe magnet configuration with dual blade magnets and four-conductor wiring, unlocking coil-split options that expand your sonic palette without sacrificing the fundamental character that makes a Rick instantly recognizable in a mix.

Tone & Output for Recording

Dual Alnico V blade magnets and an 8.3k DC resistance generate a punchy, defined low-midrange response with 8 kHz resonant peak that emphasizes clarity and articulation—critical for maintaining definition when layering bass in dense arrangements. The EQ profile of 6 (Bass) / 4 (Mid) / 7 (Treble) provides balanced low-end presence without muddiness, controlled midrange that sits cleanly in the mix, and bright treble that captures the signature Rickenbacker shimmer and snap on tape or disk.

Construction & Studio Compatibility

Built with vacuum wax potting for stability and noise rejection—essential for consistent tracking across multiple takes—this pickup ships with a phenolic mounting ring because the SRB-1B is slightly larger than the original bridge unit. The included ring is essential for proper fitment, and the original chrome ring is incompatible. The four-conductor cable enables in-phase and out-of-phase coil splits as well as series/parallel switching, giving you precise control over humbucking effect and tonal character, so you can dial in the exact voicing needed for each song or session.

Key Features

• Dual Alnico V blade magnets
• 8.3k DC Resistance (Bridge)
• 8 kHz Resonant Peak
• Four-conductor cable for coil-split flexibility
• Humbucking dual-coil configuration
• Vacuum wax potted construction
• Phenolic pickup ring included
• EQ: 6 Bass / 4 Mid / 7 Treble
• Designed for 4-string Rickenbacker 4003 bass
• Direct replacement for stock horseshoe magnet bridge pickup

The SRB-1B preserves the tonal DNA of the Rickenbacker while adding modern wiring versatility and improved consistency, making it an ideal upgrade for producers and engineers seeking refined articulation and expanded tonal control across sessions.