The Radial ProD2 is a passive stereo DI box developed to address the needs and challenges of interfacing a stereo keyboard to a professional audio system. This passive DI features two independent channels with separate inputs and thru-puts on the artists on stage amp and two fully isolated outputs for the PA system. At the heart of the Radial ProD2 stereo DI box is a design featuring two high performance Eclipse ET-DB2 transformers. These deliver a frequency performance of 20Hz to 20kHz and are able to withstand tremendous signal levels without distortion. Unlike an active circuit that can overload when the signal exceeds the rail voltage, transformer based DI boxes saturate. This creates a pleasing effect, naturally rounding out the tone and acting like a subtle limiter-particularly beneficial when working with digital pianos, samplers and drum machines that can produce excessive dynamics.

Radial ProD2

  • Specifications

    • Audio circuit type: Passive, transformer based
    • Number of channels: Dual channel (Stereo)
    • Frequency response: 20Hz ~ 18.5KHz (± 0.2dB) 
    • Dynamic range: 128dB 
    • Maximum input: +18dB @ 20Hz 
    • Total harmonic distortion: 0.01% from 20Hz~20kHz @-10dB
    • Phase deviation: 1° @ 100Hz; 8° @ 20Hz 
    • Input impedance: 140k Ohms, unbalanced 
    • Output impedance: 150 Ohms, balanced 
    • Transformer: Radial RT-DBI, 12:1 ratio
    • Shield: Faraday, mu-metal can
    • Input pad: -15dB 
    • 180° polarity reverse: Inverts absolute phase
    • Ground lift: Disconnects pin-1 at XLR output 
    • XLR configuration: AES standard (pin-2 hot) 
    • Connectors: 1/4" in & thru, XLR-M out
    • Construction: 14 gauge steel chassis & outer shell
    • Finish: Baked enamel
    • Size: (W x H x D) 70 x 108 x 44mm
    • Weight: 0.54kg
    • Power: Passive, no power required