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Radial Engineering Pro48, Active Direct Box

  • High resolution active direct box.
  • 48V phantom powered with digital switching.
  • Excellent headroom and dynamic range with a low noise floor.
  • Ground lift switch, when activated helps to reduce hum and buzz caused by ground loops.
  • Pad switch engages a -15dB pad to reduce the input level.
  • Connectors are 100% electrically isolated from the chassis.


The Pro48 from Radial Engineering is a high-performance active direct box designed specifically for guitars and bass with active pickups that produce considerably higher output. It exhibits excellent headroom and dynamics. The Radial Engineering Pro48 Active Direct Box is a professional-grade DI box that is specifically designed to handle the challenges of live performance and studio recording. This active direct box is capable of delivering high-quality sound with low noise and distortion, making it an essential tool for any musician, engineer or producer.

Use Cases:
The Pro48 is an ideal solution for guitarists, bassists, keyboardists, and other musicians who need to connect their instruments directly to a mixing console or recording interface. It is also well-suited for use in live performance settings, where it can help to eliminate ground hum and other unwanted noise.

The Pro48 features a rugged and durable construction, which is designed to withstand the rigors of professional use. It also includes a range of technical specifications that ensure high-quality audio performance, including:

Type: Active direct box
Inputs: 1/4″ instrument input, 1 x XLR input
Outputs: 1 x XLR output
Frequency response: 20Hz – 20kHz (+/- 1dB)
Total harmonic distortion: less than 0.01%
Input impedance: 220k Ohms
Output impedance: 600 Ohms
Ground lift: Yes
Pad: -15dB
Phantom power: 48V
Technology used:
The Pro48 utilizes advanced circuitry and technology that provides high-quality sound with low noise and distortion. It is powered by 48V phantom power, which ensures that the signal remains clean and free from interference. The Pro48 also includes a range of features that make it easy to use, including a ground lift switch that eliminates ground hum and a -15dB pad switch that allows the unit to handle high-output sources.

In summary, the Radial Engineering Pro48 Active Direct Box is a high-quality and versatile DI box that is ideal for use in live performance and studio recording settings. Its rugged construction, advanced circuitry, and range of features make it an essential tool for any musician, engineer, or producer who demands the best from their equipment.


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