Seymour Duncan SSB-4B Passive Soapbar 4-String Bridge Pickup

The SSB-4B delivers articulate, punchy bass tone without requiring batteries or external power conditioning. Its moderate output and carefully voiced EQ curve make it the go-to choice for players seeking clarity and definition in active-style pickup slots on passive basses. This is a direct replacement for EMG 35 cavity dimensions, making installation straightforward on compatible instruments.

Tone & Output Character

A 3.7 kOhm DC resistance with 8.1 KHz resonant peak produces focused midrange presence and controlled treble response. The EQ voicing of 6 bass / 4 mids / 7 treble emphasizes low-end definition while maintaining articulate attack, ideal for players who want punch without muddiness in a passive platform.

Design & Compatibility

Dual blade magnets spanning the full coil length accommodate maximum string spacing up to 2.70" (68.5mm), ensuring even response across all four strings. Ceramic magnet construction and dual-coil architecture provide the output stability needed for modern bass playing, while the two-conductor cable simplifies wiring in any bass configuration.

Key Features

• Passive design — no batteries required
• DC Resistance: 3.7 kOhm
• Resonant Peak: 8.1 KHz
• EQ (Bass/Mids/Treble): 6 / 4 / 7
• Dual coil construction
• Ceramic magnets
• Full-length dual blade magnets
• Maximum string spacing up to 2.70" (68.5mm)
• Two-conductor cable
• Direct replacement for EMG 35 sized pickup slot
• Soapbar style, 4-string bridge position
• Moderate output

The SSB-4B combines passive reliability with active-style tonal authority, making it an excellent choice for upgrading or repairing bass guitars with EMG 35 cavities.