Seymour Duncan SSB-4S Passive Soapbar 4-String Pickup Set
The SSB-4S delivers articulate, controlled output with ultra-low noise—essential for bass recording where clarity and detail preservation matter in the mix. These passive humbucking soapbars retain the aggressive character of the original design while offering a direct drop-in solution for EMG 35 or 40 equipped instruments.
Tone & Electronics
Ceramic bar magnets paired with two-conductor wiring produce moderate output with exceptional noise rejection, translating to clean tracking without hum or interference—critical for layering bass parts and ensuring your recording sits transparently in the low end. The calibrated neck and bridge set exhibits different resonant characteristics—9.2 kHz at the neck and 8.1 kHz at the bridge—to maintain balanced frequency response across the fingerboard for consistent tone capture.
Design & Compatibility
Full-length dual blades accommodate maximum string spacings up to 2.70″ (68.5mm), ensuring proper pole piece alignment regardless of bridge configuration for even pickup response. Passive construction eliminates battery requirements and the maintenance concerns associated with active systems, simplifying studio setup and minimizing session interruptions. The soapbar form factor integrates seamlessly into any compatible cavity for straightforward installation.
Key Features
- Pair of passive humbucking soapbar pickups
- Neck pickup DC resistance: 6.3 kΩ
- Bridge pickup DC resistance: 7.3 kΩ
- Neck resonant peak: 9.2 kHz
- Bridge resonant peak: 8.1 kHz
- Ceramic bar magnets
- Two-conductor cable
- Full-length dual blades with up to 2.70″ (68.5mm) string spacing accommodation
- Direct replacement for EMG 35 or 40
- Calibrated neck and bridge set
- Moderate output with ultra-low noise
- Passive design—no batteries required
The SSB-4S combines proven passive topology with modern construction to deliver balanced tone, reliable performance, and straightforward operation—perfect for home studio bass tracking and professional session versatility.








