Which pickup option to choose?
K&K Big Shot Pickup
The K&K Big Shot pickup is a 19mm diameter universal style piezo ceramic sound board transducer. This is a basic passive pickup (no preamp or battery) with good output volume which works well with most amps. As a sound board transducer, it is somewhat susceptible to feedback at higher volumes
K&K Aloha Twin Spot Pickup
The K&K Twin Spot is a double sensor pickup specifically designed for ukulele with two 13mm piezo ceramic sound board transducers. Passive as well with a warmer and more natural sound compared to the single Big Shot p/u. Works well with most amps as well as external pre-amps for higher output volumes.
Mi-Si Battery-Free Pre-Amp & Undersaddle Pickup
The Mi-Si Acoustic Trio system with undersaddle pickup features an active, battery-free preamp designed specifically to work with the Open to Source piezo film pickup. The built in preamp for this system uses Mi-Si’s custom piezo linearization scheme, allowing for the most truthful and accurate high gain output. Charging is accomplished with the included Mi-Si Power Charger which plugs into the instrument output jack, providing you with up to 16 hours of performance time with a 60 second charge.