The Tonebone PZ-Pre Acoustic DI Box Preamp is equipped with piezo acoustic input signal boosters to allow both add-on instrument pickups and built-in, integral active preamps to be combined for a more natural rendering. It is compact yet full featured, designed for both studio and live performance.

The Tonebone PZ-Pre instrument preamp begins with two inputs for two instruments, which can be toggled using the toggle footswitch. If you want to use two pickups on a single guitar, a unique Mix function is provided that converts the two channels from "either-or" to both. There are separate level controls for each input.

The tone shaping on the PZ-Pre preamplifier is simple yet extremely musical. It features powerful bass and high controls with a semi-parametric mid. This is supported with a feedback eliminating notch filter with variable frequency sweep control and choice of normal and extra deep notch filtering. To help eliminate troublesome resonance, a dual slope low cut (high pass filter) is also provided. An internal polarity reverse can also be engaged to help eliminate run-away feedback.

To augment on-stage performance, the PZ-Pre Direct Box Preamp is equipped with a combination power booster and effects loop bus. This allows you to introduce an effect such as a chorus, or boost the signal for soloing with a simple foot stomp. A separate tuner out has also been provided along with a mute footswitch for on-the-fly tuning.

To facilitate all kinds of monitoring, the Radial PZ-Pre offers the most comprehensive output array ever: A standard instrument amp output sends the instrument signal to your personal amplifier. A pre-EQ balanced lo-Z balanced output is used to route the flat, pre-equalized signal the signal to the front of house mix position, while a second XLR out is post-EQ for onstage monitoring and in-ear systems so that the musician can get the sound he wants. XLR outputs are equipped with polarity reverse and ground lift.

Like all Radial products, the PZ-Pre features heavy-duty 14-gauge construction and is supported with a 3-year transferable warranty. Comes equipped with an external 15VDC power supply.