The Radial PZ-Pre is a high-performance acoustic instrument preamp and DI designed for professional stage and studio use. Built by Radial Engineering, it provides precise impedance matching, clean gain, and advanced tone-shaping for piezo-equipped instruments such as acoustic guitar, violin, cello, mandolin, upright bass, and more.
Key Features
-
Dual Instrument Inputs
Instantly switch between two instruments on stage, each with its own impedance setting for optimal tone. -
Variable Impedance Control
Tailored specifically for piezo pickups to eliminate harshness and restore natural acoustic sound. -
3-Band EQ with Sweepable Mid
Precise tonal shaping to suit different instruments and performance environments. -
High-Pass Filter (Low-Cut)
Reduces unwanted low-frequency rumble and stage noise. -
Notch Filter with Phase Control
Effectively suppresses feedback without sacrificing tone. -
Balanced XLR DI Output
Transformer-isolated Radial DI for pristine signal to mixers and PA systems. -
¼″ Line Output
Feed an on-stage acoustic amp simultaneously. -
Rugged Steel Construction
Road-ready enclosure designed for heavy touring and professional use.
Typical Applications
-
Live acoustic performances
-
Multi-instrumentalists switching instruments on stage
-
Worship, theatre, and studio environments
-
Direct recording of acoustic instruments
Technical Overview
-
Inputs: 2 × ¼″ instrument (piezo-optimised)
-
Outputs: Balanced XLR DI, ¼″ line out
-
EQ: Bass, Treble, Sweepable Mid
-
Filters: High-pass (low-cut), Notch filter
-
Controls: Phase reverse, mute, footswitch input select


















