L.R. Baggs HiFi Pickup System

From L.R. Baggs: 

"a non-invasive pickup design that pairs dual bridge plate sensors with high-fidelity electronics, providing exceptional balance, definition, dynamics, and good feedback resistance. With a simplified peel-and-stick installation, the lightweight pickups preserve the integrity of your instrument’s bridge plate without negatively altering your acoustic tone. The construction, materials, size, and shape of the pickups contribute to a balance between string and body energy that represents the inherent sound of your instrument. Lastly, HiFi’s built-in, studio-quality preamp is voiced to complement the pickups for an optimal plug-and-play experience."