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Radial Engineering Pro48 - Phantom Powered Active DI Box

Radial Engineering Pro48 - Phantom Powered Active DI Box

£88.99 (inc. vat)
£74.16 (ex. vat)

In Stock

Thanks to Radial's specially designed power supply the Pro48 has enough headroom to handle a wide range of sources.
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Radial Engineering Pro48 - Phantom Powered Active DI Box

The ideal DI for bass, acoustic guitar and any similar source likely to deliver significant levels. Naturally it delivers this with the signature rich sound quality of any Radial DI.

The Radial Pro48 has a digital power supply that intelligently increases headroom and allows for less distortion while producing a smooth, linear response that extends from 20Hz to well above 100kHz resulting in natural, uncoloured sound. This makes the Radial Pro48 an ideal candidate for use with today's battery powered active basses and acoustic guitars that tend to overload other DI boxes.

The compact Radial Pro48 is built road-ready with 14 gauge steel in our unique book-end™ design that provides protective zones around the switches and connectors. The internal welded I-beam construction assures outside stress will not torque the PC board thus assuring longer product life. Exceptional sonic performance, great natural tone at an affordable price; the Radial Pro48 truly represents a breakthrough in value.

Radial Pro 48 Features

  • High resolution active direct box
  • Increased dynamic range and headroom
  • 48V phantom powered with digital switching
  • Compact, rugged book-end design
  • Ideal for active guitars and basses


  • Audio circuit type: Proprietary analog circuit with low-noise op-amp
  • Frequency response: 20Hz ~ 20kHz (± 1.5 dB)
  • Dynamic range: 99dB
  • Noise floor: -82dB below 0dBu
  • Equivalent input noise: -86dBu
  • Maximum input: +9dBu
  • Phase deviation: +28º at 20Hz | +1º at 1kHz | -2º at 20kHz
  • Total harmonic distortion: 0.001% @ 0 dBu
  • Inter-modulation distortion: 0.002% @ 0 dBu
  • Input impedance: 220kΩ - ¼" input
  • Output impedance: 600Ω - XLR output
  • Input pad: -15dB
  • Ground lift: Disconnects pin-1 at XLR output
  • XLR configuration: AES standard (pin-2 hot)
  • 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
  • Conditions: For use in dry locations only between 5°C and 40°C
  • Warranty: Radial 3-year, transferable
Additional Information

Additional Information

Manufacturer Radial Engineering
Model PRO48
GTIN 0676101036776
Single or Pair No