Radial PZ-Pro: Mission Control for the Acoustic Stage

The Radial PZ-Pro is a flagship two-channel acoustic instrument preamp, DI, and switcher that gives instrumentalists complete command of tone, EQ, effects, and routing from one road-ready unit. Each channel carries its own equalizer and feedback filtering, the second channel adds a phantom-powered microphone input, and an assignable effects loop and three footswitches turn a complex acoustic rig into a single, playable control surface. For the performer who refuses to compromise on tone across multiple instruments, it is the no-limits centerpiece of the setup.

Two Fully Independent Channels

Unlike simpler acoustic preamps, the PZ-Pro treats each input as a complete channel with its own semi-parametric equalizer, level control, and filter section. That means you can dial a bright, articulate voice for a flat-top on channel one and a warm, rounded tone for an upright bass on channel two, then switch or blend between them with individual settings intact. No single shared EQ compromise, and no re-tweaking every time you change instruments.

A Microphone Input With Phantom Power

The second channel includes a balanced XLR microphone input with switchable 48-volt phantom power, so it accepts any dynamic or condenser mic, including clip-on instrument microphones and even vocal mics. That opens the door to true mic-and-pickup workflows on stage, letting you capture the air and body of an instrument with a microphone that a pickup alone can never reproduce.

Blend a Pickup and a Microphone for Natural Tone

A classic studio technique for acoustic bass and guitar is to combine a pickup with a bridge or body microphone, EQ the mic for low-end warmth, and use the pickup for attack and definition. The PZ-Pro brings that approach to the stage: blend the two channels, shape each independently, and you get a composite tone that is fuller and more natural than either source on its own, with feedback kept in check by the per-channel filters.

PZB Piezo Boost on Both Channels

Both channels include Radial's PZB piezo booster, which lifts the input impedance from 220 kilohms to 10 megohms at the press of a switch. That high-impedance load is exactly what finicky piezo transducers need to sound smooth and full-bodied rather than thin and quacky, so whichever instrument you plug into either channel is optimized for its pickup from the start.

An Assignable Effects Loop With Wet/Dry Control

The PZ-Pro's effects loop can be assigned to channel A, channel B, or both at once, letting you decide exactly which instrument runs through your pedals. A wet/dry knob blends in as much or as little effect as you want, and you can bring the loop in and out with a footswitch or set it to always-on, freeing that footswitch to control the variable clean boost instead.

Three Footswitches and Full Studio I/O

Three footswitches handle channel selection, the boost and effects loop, and a mute for silent on-stage tuning. On the back panel, pre- and post-EQ balanced XLR outputs feed the house and a recording interface, a 1/4-inch amp output drives a stage amp, and a tuner output stays fed at all times. With total harmonic distortion under 0.005% and a 14-gauge steel chassis, it delivers studio-grade signal quality in a body built for touring.

Who the PZ-Pro Is For

The PZ-Pro is the flagship choice for professional and multi-instrumentalist acoustic performers who need no-compromise control on stage and in the studio. Singer-songwriters combine a vocal mic with a guitar, orchestral and roots players switch between strings and mic'd instruments, and acoustic bassists chase studio-grade tone live. Shipped with its 15-volt supply and finished to the durability standard the brand is known for, it is ready to anchor the most demanding acoustic rig.