Seymour Duncan ASB-BO-4 Blackouts For Bass Pickup

Yes, if your bass has an EMG 35-sized cavity. The ASB-BO-4 is a direct replacement with maximum string spacing of up to 2.70 inches (68.5mm), which accommodates standard 4-string spacing. Two-conductor cable simplifies wiring in most bass electronics cavities.

The ASB-BO-4 delivers high-output, articulate, and punchy response with a tight low end and scooped mids. Built with ceramic bar magnets and tuned with an 8.0 kHz resonant peak, they excel in funk, metal, and slap styles while minimizing noise—not ideal for jazz or traditional blues.

The integrated active EQ provides Bass 9 / Mid 5 / Treble 9 settings, offering aggressive presence boost on both ends while keeping mids scooped for cutting through dense mixes and delivering punchy tones.

The dual-blade design ensures consistent string-to-string balance across the full dynamic range, meaning every string maintains even response whether you're playing softly or attacking hard during slap or aggressive styles.

The ASB-BO-4 sits in the same class as the EMG 35DCX and Seymour Duncan Quarter Pound Bass, but delivers darker, more controlled midrange character suited for modern high-output applications.

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