The Radial Pro48 Active Direct Box is a high-performance DI designed for demanding professional audio applications. Featuring a proprietary analog circuit with low-noise op-amps, the Pro48 delivers exceptional audio clarity and dynamic range. Its robust construction and reliable performance make it an ideal choice for both live and studio environments.

Features

• Proprietary Analog Circuit: Designed with low-noise op-amps for superior audio performance.
• Wide Frequency Response: 20Hz to 20kHz (± 1.5dB) for accurate sound reproduction.
• High Dynamic Range: 99dB ensures clear and detailed audio.
• Low Distortion: Total harmonic distortion of 0.001% @ 0 dBu and intermodulation distortion of 0.002% @ 0 dBu.
• Phase Coherence: Minimal phase deviation across the frequency spectrum.
• Versatile Connectivity: Equipped with a 1/4" input and XLR output.
• User-Friendly Features: Includes an input pad and ground lift switch for handling various audio sources and eliminating ground loop noise.
• Rugged Construction: Built with a 14-gauge steel chassis for durability.

Specifications

• Audio Circuit Type: Proprietary analog circuit with low-noise op-amp
• Frequency Response: 20Hz ~ 20kHz (± 1.5dB)
• Dynamic Range: 99dB
• Total Harmonic Distortion: 0.001% @ 0 dBu
• Intermodulation Distortion: 0.002% @ 0 dBu
• Phase Deviation: +28º at 20Hz, +1º at 1kHz, -2º at 20kHz
• Input Impedance: 220kΩ (1/4" input)
• Output Impedance: 175Ω (XLR output)
• Equivalent Input Noise: -86dBu
• Noise Floor: -82dB below 0dBu
• Maximum Input: +9dBu