SH 712 Universal Dual Transducer (20mm) sound-hole mount this is a direct fit

this is a direct fit

The Shadow SH 4012 is an onboard preamp and pickup combination with panorama effect

and stereo NanoMAG pickup/preamp

A completely shielded case and low impedance output make it 100% hum-free

Preamp with volume and tone control

SH 712 Universal Dual Transducer (20mm) sound-hole mount this is a direct fitThe Shadow SH 712 is a fast and easy to install dual disc transducer designed for any instrument. The larger 20mm transducers sense more low frequencies than smaller 12mm transducers. Sensors mount to any instrument to sense vibrations and convert them to an electrical signal Sensors adhere with included non permanent "tak" adhesive Includes 1' cable with 1 4 Output Jack DOWNLOAD MANUAL