Shadow SH 4020-C Preamp w/Nanoflex

Absolute satisfaction. I have tried many pickups and this one is definitely the best for my needs. I will definitely use it in all my guitars. The sound is perfectly balanced. I had a lot of problems with the poor volume equalization of individual strings on most pickups. But this one is perfect in that regard. More sonically accurate than Baggs but more natural than Fishman. The piezo is also very thin and doesn't disturb the saddle pickup as much. The equalizer is perfect and the output is also strong enough. (no need to worry about lower voltage). Disadvantages: it is made of plastic and looks a little cheap (but rather from the inside). It is necessary to cut a relatively large hole. The included screws need to be replaced with larger ones.
I will definitely buy more!