The Radial Engineering Pro48 is a high-performance active direct box designed for professional live sound, stage performances, worship venues, recording studios, and AV applications. Powered by 48V phantom power, the Pro48 delivers exceptional signal handling, increased headroom, and superior audio quality for both active and passive instruments.
Engineered with an innovative internal switching power supply, the Pro48 provides greater dynamic range and lower distortion than conventional active DI boxes. Whether you're connecting an acoustic guitar, active bass, keyboard, or other line-level instruments, the Pro48 ensures clean, natural, and transparent sound reproduction.
Professional musicians and audio engineers require a direct box that can accurately capture instrument signals without coloration, distortion, or signal degradation. The Radial Pro48 is specifically designed to meet these demands.
Unlike standard active DI boxes, the Pro48 incorporates a sophisticated internal switching power supply that dramatically increases headroom while maintaining ultra-low distortion. This advanced design allows the Pro48 to handle high-output active bass guitars, acoustic instruments with onboard preamps, keyboards, and other powerful audio sources that may overload conventional DI boxes.
With a smooth and linear frequency response extending from 20Hz to beyond 40kHz, the Pro48 faithfully preserves every detail of your instrument's natural tone. The result is a balanced, noise-free signal that is ideal for front-of-house systems, stage monitoring, digital mixers, recording interfaces, and broadcast environments.
Built to Radial's renowned professional standards, the Pro48 combines exceptional sonic performance with rugged steel construction for years of reliable service on stage and in the studio.
• High-performance active direct box
• Powered by standard 48V phantom power
• Innovative internal switching power supply
• Increased dynamic range and headroom
• Handles active and passive instruments with ease
• Ultra-low distortion and transparent audio performance
• Extended frequency response from 20Hz to over 40kHz
• Ideal for acoustic guitars and active basses
• Balanced XLR output for professional audio systems
• Reduces noise and signal loss over long cable runs
• Rugged steel construction for touring applications
• Suitable for live sound, recording, broadcast, and AV systems
• Acoustic guitar performances
• Active bass guitar systems
• Electric guitar rigs
• Keyboard and synthesizer setups
• Recording studios
• Houses of worship
• Live concert productions
• Broadcast and streaming facilities
• Corporate AV systems
• Educational institutions
Designed to handle high-output active basses, acoustic guitars, and keyboards without distortion or clipping.
Extended frequency response delivers clean, accurate audio with virtually no coloration.
No batteries or external power supplies required—simply connect to any professional mixer with phantom power.
Optimized for instruments with onboard preamps and active electronics.
Delivers consistent results for FOH engineers, recording professionals, and musicians.
Heavy-duty steel construction ensures years of reliable operation in demanding environments.
Solution: Increased headroom and switching power supply design handle high-output signals without distortion.
Solution: Wide frequency response preserves the natural character of the instrument.
Solution: Balanced XLR output provides clean, low-noise signal transmission.
Solution: Operates directly from 48V phantom power supplied by mixers and audio consoles.
Solution: Professional-grade circuitry delivers consistent, studio-quality audio on any stage.
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