Radial Pro48 1 Channel Active DI Box

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. Features High performance active direct box Increased dynamic range and headroom 48V phantom powered with switching supply Ideal for acoustic guitar and bass Specifications Audio circuit type: Proprietary analog circuit with low-noise op-amp Frequency response: 20Hz ~ 20kHz (± 1.5 dB 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: 220k? - ¼ input Output Impedance: 600? - XLR output Equivalent Input Noise: -86dBu Noise: -82dB below 0dBu Maximum Input: +9dBu Construction: 14-gauge steel Size (L x W x D): 4.25 x 2.75 x 1.75 (108 x 70 x 44mm) Weight: 1.2 lb (0.54kg) Power: 48V phantom - proprietary digital switching Conditions: For use in dry locations only between 5°C and 40°C