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Radial Pro48 Active Direct Box - 48V Phantom Powered
  • Radial Pro48 Active Direct Box - 48V Phantom Powered
  • Radial Pro48 Active Direct Box - 48V Phantom Powered
  • Radial Pro48 Active Direct Box - 48V Phantom Powered
  • Radial Pro48 Active Direct Box - 48V Phantom Powered
  • Radial Pro48 Active Direct Box - 48V Phantom Powered
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Radial Pro48 Active Direct Box - 48V Phantom Powered

Manufacturer: Radial Engineering

Item #: RAD-PRO48   •   MFG #: PRO48


List Price:$115.00
Our Price:$99.99

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Availability: In Stock
Item is Available for immediate shipping from our warehouse.
  • Special Order Item: non-cancelable, non-returnable, non-refundable.



The Radial Pro48 is a compact high-performance 48V phantom powered active direct box designed specifically for todays high output instruments.

The Pro48's innovative internal switching power supply significantly increases headroom producing less distortion while yielding a smooth, linear response that extends from 20Hz to well above 40kHz. This results in natural, uncolored signal that is as good or better than DI boxes costing several times more. The superior performance makes the Pro48 an ideal candidate for use with battery powered active basses and acoustic guitars that tend to overload other direct boxes.

The compact Pro48 is built road-ready with 14 gauge steel throughout. A unique book-end design creates a protective zones around the switches and connectors while the internal I-beam construction assures outside stress will not torque the PC board and deteriorate solder connections. A full bottom no-slip pads adds mechanical isolation and electrical insulation to further extend the Pro48's lifespan.

Exceptional sonic performance, great natural tone and an affordable price tag! The Radial Pro48 truly represents a breakthrough in value.

  • Features

    • High performance active direct box
    • Increased dynamic range and headroom
    • 48V phantom powered with switching supply
    • Ideal for acoustic guitar and bass
    • Input pad: -15dB
    • Ground lift: Disconnects pin-1 at XLR output
    • XLR configuration: AES standard (pin-2 hot)
  • Specifications

    • Audio circuit type: Proprietary analog circuit with low-noise op-amp
    • Frequency response: 20Hz ~ 20kHz (± 1.5 dB)
    • Signal to noise ratio:
    • Dynamic range: 99dB
    • Noise floor: -82dB below 0dBu
    • Equivalent input noise: -86dBu
    • Maximum input: +9dBu
    • Phase deviation: +28§ at 20Hz | +1§ at 1kHz | -2§ at 20kHz
    • Total harmonic distortion: 0.001% @ 0 dBu
    • Inter-modulation distortion: 0.002% @ 0 dBu
    • Input impedance: 220k? - ¬" input
    • Output impedance: 600? - XLR output
    • Power: 48V phantom - proprietary digital switching
    • Construction: 14 gauge steel chassis and outer shell
    • Finish: Durable powder coat
    • 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

Add Accessories for your PRO48: