Seymour Duncan Active Mag Pickup

Seymour Duncan Active Mag Pickup

The Seymour Duncan Active Mag Pickup is a hum-canceling magnetic pickup engineered for acoustic instruments requiring minimal modification and maximum control. Its compact form factor mounts directly into soundholes between 3.75" and 4.2" in diameter, with on-body volume and tone controls that let you shape your tone without external pedals or preamps—essential for gigging musicians who need real-time adjustment on stage.

Design & Installation

This op-amp topology pickup uses two CR2032 batteries mounted directly to the unit, delivering 160 hours of continuous operation per battery set. The hum-canceling magnetic design with adjustable pole pieces per string ensures clean signal capture while allowing fine-tuned response for individual strings—critical for balanced output across the instrument and reliable performance in live settings where consistent tone matters.

Audio Performance

The pickup delivers a 28.60 kHz frequency response with 0.0075% THD and an exceptionally low 89dBV noise floor, ensuring transparent, low-noise amplification that cuts through a mix without feedback or artifacts. Its 1.0 K output impedance and 1.5mA current draw make it compatible with standard guitar cables and mixing rigs without impedance matching concerns—plug it straight into your board or interface.

Key Features

• Two CR2032 batteries mounted directly to pickup
• 160-hour battery life per set
• Soundhole compatibility: 3.75" to 4.2" diameter
• Frequency response: 28.60 kHz
• Output impedance: 1.0 K
• Current draw: 1.5mA
• Noise floor: 89dBV
• Total harmonic distortion: 0.0075%
• Magnet strength: 0.58 kg Gauss
• Op-Amp topology with hum-canceling design
• Adjustable pole pieces per string for balanced response
• Volume and tone controls integrated on pickup body
• Standard guitar cable connectivity

The combination of low noise, low distortion, and integrated tone shaping makes this pickup dependable for stage work and studio recording—players get direct control without chasing external gear, and sound operators get a clean, predictable signal that behaves consistently across venues and cable runs.