Here's what LR Baggs have to say about the M1 Active:
The M1 Active is a patented humbucking pickup with a twist. In a common stacked humbucker, the lower coil cancels hum, but doesn’t contribute anything positive to the sound. We unlock the lower coil with a carefully tuned support that allows it to capture higher frequency resonances.
As the pickup moves with the guitar’s soundboard, a body signal is created in the suspended coil that adds presence and realism to your amplified sound. The plug-and-play design has built-in electronics with audiophile-grade circuitry for that sweet and pure acoustic sound we are known for. The internal electronics boost the pickup’s output for a full and direct signal to any acoustic amplifier or P.A. system, eliminating the need for any external preamps. The addition of a built-in volume control provides the player quick access for any performance.
- Highly Feedback-resistant
- Volume control
- Built-in gold plated 1/8" jack makes removing the pickup a snap
- Long battery life – 1,000 hours on one 3V lithium coin cell
- Adjustable pole pieces for perfect balance with most string types and gauges
- Includes a pre-wired strapjack harness