Seymour Duncan Active Mag Pickup

Seymour Duncan Active Mag Pickup

The Seymour Duncan Active Mag Pickup is a hum-canceling magnetic pickup engineered for capturing acoustic instrument signals with minimal modification to the source and maximum control at the point of capture. 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 during tracking without requiring external pedals or preamps—keeping your signal path direct and your tracking sessions efficient.

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 achieving balanced, articulate output across the instrument when tracking and mixing.

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 through your recording chain. Its 1.0 K output impedance and 1.5mA current draw make it compatible with standard guitar cables and audio interfaces without impedance matching concerns, giving you reliable, predictable tracking performance.

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 an excellent choice for home-studio engineers and producers who value signal integrity and hands-on control over their source material without external processing.