Fishman BP-100 Classic Series Upright Bass Pickup Fishmans classic bridge-mounted, dual-element, piezo-ceramic pickup An impedance-matching preamp is recommended, but not required The BP-100 installs in minutes and delivers deep sustained pizz tone, and fast articulation with emphasized direct string sound A Platinum Stage or Platinum Pro EQ preamp, which have dedicated Bass modes, is recommended, but not required Professional installation is recommended.