Radial Engineering PZ-DELUXE Tonebone Acoustic PreampThe Radial PZ Deluxe is a studio quality instrument preamp that jam packs a full array of features into a compact pedal for live stage use. And like most studio preamps, the PZ Deluxe begins with a low noise front end that is capable of exceptional dynamics to adapt to all instruments including acoustic guitar, upright bass, mandolin and violin no matter what type of pickup system is being used. For piezo transducers, a special PZB gain stage may be