Radial Engineering's PZ-DI is a high-performance, Variable Load active Direct Box with piezoelectric input.

PZ-DI has a variable load selector that allows you to set the input impedance of the direct box, in order to optimize performance with the instrument's pickups. The 1 megaohm position offers the classic impedance found on most active DI Boxes, while the 220k ohm setting heats the tone of the magnetic pickups providing the feel and timbre similar to connecting directly to an amplifier. The third setting is an ultra-high impedance of 10 megaohms designed specifically for piezoelectric transducers, which helps compensate for the harsh or screeching tone that can occur when a piezo is connected to an input with a

Variable filter to fit any PZ- instrument

DI has a variable bass filter that gently attenuates low frequencies, to remove unwanted resonances on stage and prevent feedback. The attenuation point of the filter can be adjusted to suit the frequency response of the connected instrument, with a lower point for acoustic bass and a higher setting for violin or banjo. A switchable high-size filter is also included, useful on instruments such as acoustic guitars with battery-powered preamps, which acts by softening high frequencies for a softer tone

Practical applications of PZ-DI

Using PZ-DI

with a

• input Output