Radial Pro48

Active Direct Box

The Pro48 is an active direct box designed for use on stage or in home recording studios, with exceptional signal handling for use with both active and passive instruments.

• High performance active direct box

• Increased dynamic range and headroom

• 48V phantom powered with switching supply

• Ideal for acoustic guitar and bass

Exceptional sonic performance
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

1/4” Input
Instrument connection to the Pro48.

-15dB Pad
Reduces the input sensitivity for active basses and high output keyboards.

Phantom Power LED
Light to confirm phantom-power is present and the Pro48 is working.

Thru
Instrument through-put to an amp. Hi-impedance thru will not load-down instrument’s tone.

Book End Design
Creates a protective zone around the jacks and switches.

XLR Out
Balanced 175Ω mic-level output, feeds mixers or mic preamp.

Ground
Lifts pin-1 at XLR to reduce hum and buzz caused by ground loops.

Powder Coat
Durable finish keeps your Pro48 looking great for years.

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: 220kΩ - ¼" input
Output Impedance: 175Ω - XLR output
Equivalent Input Noise: -86dBu
Noise Floor: -82dB below 0dBu
Maximum Input: +9dBu
Features: Input pad, Ground lift
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
Warranty: Radial 3-year, transferable