Radial Engineering PZ-DI Active Piezo-Optimized Direct Box with High-Impedance Input and Low-Noise Balanced Output

The Radial Engineering PZ-DI is a professional active direct box designed specifically for piezo-equipped instruments and other high-impedance sources that require precise impedance matching and transparent signal conversion. Built for live sound, studio recording, and orchestral applications, it delivers a clean, natural tone with excellent clarity and dynamic response.

At its core, the PZ-DI features a piezo-optimized high-impedance input stage, ensuring accurate capture of acoustic instruments such as violin, cello, upright bass, and acoustic guitar. This prevents the harshness and thinness that can occur when piezo pickups are improperly loaded, preserving the instrument’s full tonal character.

The active circuitry provides low-noise, high-headroom performance, allowing the unit to handle both piezo and magnetic pickups with ease. It is powered via 48V phantom power, eliminating the need for batteries and ensuring consistent operation in professional environments.

A balanced, low-noise output delivers clean signal transmission to mixing consoles, audio interfaces, and PA systems, while the rugged steel chassis ensures long-term durability in demanding touring and orchestral setups.

Key Features:

• Active direct box optimized for piezo and magnetic pickups
• High-impedance input for accurate acoustic instrument capture
• Designed for orchestral, acoustic, and stage applications
• 48V phantom powered (no batteries required)
• Low-noise, high-headroom active circuitry
• Balanced output for clean signal transmission
• Preserves natural tone and dynamics of acoustic instruments
• Rugged steel enclosure for professional touring use