The Radial PZ-DI Orchestral Instrument Direct Box is a purpose-built, professional DI designed specifically for piezo-equipped instruments and high-impedance sources found in orchestral, acoustic, and stage environments.
From violins, cellos, and upright basses to acoustic guitars, mandolins, and banjos, the PZ-DI delivers natural tone, full frequency response, and exceptional clarity without the harshness or low-end loss common with standard direct boxes. It’s the ideal solution for players and engineers who demand accurate, musical sound from piezo pickups. At the heart of the PZ-DI is a custom Radial transformer paired with an ultra-high 10 MΩ input impedance, ensuring proper loading for piezo elements and preserving the instrument’s true character. A selectable low-cut filter helps control unwanted resonance and stage rumble, while a polarity reverse switch allows quick phase correction when blending with microphones. Built in Radial’s legendary steel enclosure and designed for the realities of live performance and studio use, the PZ-DI provides dependable, noise-free operation in even the most demanding setups.
Radial PZ-DI Orchestral Instrument Direct Box Features
- Optimized for orchestral instruments on a live stage
- Adjustable load for piezo and magnetic pickups
- Variable low-cut filter to control bass resonance
- 48V phantom powered, does not require batteries
- Switchable impedance for all pickup types
- Extra headroom delivers amazing sound
- Compact design without too many controls
- Internal switching supply for more dynamics
- Lift the ground without losing phantom power
- Perfectly suited for virtually any instrument
Radial PZ-DI Orchestral Instrument Direct Box Applications
- Piezo equipped orchestral instruments
- Magnetic sound-hole pickups on acoustics
- Acoustic guitars with active preamps
- Passive and active electric bass guitar
Radial PZ-DI Orchestral Instrument Direct Box Specifications
- Technical Specs:
- Audio Circuit Type: Proprietary analog circuit with low-noise FET op-amp
- Frequency Response: 20Hz ~ 20kHz
- Dynamic Range: 105dB
- Equivalent Input Noise: -98dBu
- Maximum Gain: +4.6dB
- Total Harmonic Distortion: 0.02% /td>
- Input Impedance: 10M/1M/220K-Ohms
- Input Impedance with PAD on: 50K-Ohms
- Output Impedance: 200 Ohms - nominal
- Features:
- Input Pad: -15dB
- XLR Configuration: AES standard (pin-2 hot)
- General:
- Power: 48V phantom - proprietary digital switching
- Construction: 14 gauge steel chassis and outer shell, baked enamel finish
- Size: 2.75" x 4.25" x 1.75" (70 x 108 x 45mm)
- Weight: 1.2 lb (544 g)
- FCC Approval: Complies with section 15 of the FCC Rules
Radial PZ-DI Orchestral Instrument Direct Box Includes
- Radial PZ-DI Orchestral Instrument DI
- User Guide
- Manufacturer Warranty
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