Has anyone got any tips about suitable preamps for piezos in mandolins? A genius (not) fitted my mandolin (a Kentucky flatiron) with a pair of stickons - belcats I think - one under each foot of the bridge. Since the top is both thick and small, the output from the piezos is very low. And because there is no preamp inside, it is a difficult signal for many mixers and DI boxes.
Most DI boxes seem to ahve an input impedance of only about 250k.
The Baggs paracoustic has an input impedance of 10 meg (more like it) but I also need a large gain. I would also like something cheaper than the paracoustic.