High-end, active, magnetic soundhole pickup with internal microphone and on-board buffering and blending. for high-quality 6-/12-string acoustic guitars with sound holes between 3.85" and 4.10" High-end pickup system, moderate output. Professional-level hum canceling Stack pickup mated with an on-board omni-directional electret condenser microphone. 12 adjustable pole pieces allow for the best possible string (...)  

Quick-mount, passive, magnetic soundhole pickup. for Acoustic guitars with sound holes between 3.85" and 4.10" Moderate output, hum canceling, lower impedance. Instant-mount, hum-canceling Stack pickup, housed in a tube with a built-in volume control. The tone is flat, warm and natural. Perfect for live situations that require on-board volume control. Extremely feedback resistant. Includes short cable with ¼" female jack. For (...)  

Professional quality, quick-mount, passive, magnetic soundhole pickup. for use with Acoustic guitars with sound holes between 3.85" and 4.10" Moderate output, instant-mount, hum canceling Stack® pickup with adjustable pole pieces, woody housing (housed in maple cover) and double potted. The adjustable pole pieces allow for the best possible string-to-string balance. The tone is full-bodied, warm, and (...)  

Quick-mount, passive, magnetic soundhole pickup. for Acoustic guitars with sound holes between 3.85" and 4.10" Vertical humbucker, moderate output, instant-mount, hum canceling pickup. Housed in maple cover (wood housing) and double potted. The tone is warm and rich with no 60-cycle hum. Great for strumming and delicate fingerstyle playing. Includes studio-quality 4 m (14') cable. For optimal tone, plug into an acoustic guitar (...)  

Quick-mount, passive, magnetic soundhole pickup. for Acoustic guitars with sound holes between 3.85" and 4.10" Moderate output, instant-mount, single coil pickup, in wood housing (housed in maple cover) and double potted. The tone is warm and rich with no 60-cycle hum. Great for strumming and delicate fingerstyle playing. Includes studio-quality 14' cable. Plugs into any amplifier, however, for optimal tone, (...)