Radial Pro48 Active 48-Volt Compact Direct Box

Radial Pro48 Active 48-Volt Compact Direct Box

The Radial Pro48 Active DI Box is a rugged, high‑performance direct injection (DI) box designed for both stage and studio environments. Powered by 48V phantom power, this compact DI unit offers superior signal handling for modern high-output instruments — especially active basses and acoustic guitars. Thanks to its innovative internal switching power supply, the Pro48 delivers increased headroom, ultra-low distortion, and a smooth, natural sound that remains uncolored by electronics. Built with pro touring in mind, its robust 14‑gauge steel chassis and protective “book-end” design ensure durability and reliability. With its clean signal transfer and extended frequency response, the Pro48 stands out as a premium yet affordable DI solution.

Key Features

• Active direct box: Designed to convert high-impedance instrument signals to balanced, low-impedance mic-level outputs.
• 48 V Phantom Power: Uses phantom power (no batteries required) and steps up the current via a switching supply for greater internal voltage.
• High headroom / increased dynamic range: Thanks to its internal switching power design, it handles loud transients with ease, minimizing distortion.
• Wide frequency response: Flat response from 20 Hz up to 40 kHz (or more, depending on spec sheet), ensuring accurate and natural sound.
• -15 dB PAD: Reduces input sensitivity to accommodate hot signals from high-output instruments or sources.
• Ground Lift Switch: Breaks ground loop hum by disconnecting pin‑1 at the XLR output.
• Thru (¼″) Output: Send your instrument signal to an on-stage amp while the balanced XLR handles the DI feed.
• Phantom power LED: Confirms when 48V power is active and unit is operational.
• Road‑ready build: 14-gauge steel “book-end” design protects switches and connectors; welded I-beam internal construction prevents PCB stress or torquing.
• Non-slip bottom: Full neoprene or rubber foot pad isolates vibration and helps unit stay put on stage.