Radial JDI Stereo

SKU: JDI Stereo

Premium Stereo Passive DI


About this item



Radial JDI Stereo

The Radial JDI Stereo is a high-performance 2-channel passive direct box for live concert touring and professional recording applications, featuring premium Jensen transformers for exceptional audio performance.

  • Jensen transformer equipped with passive DI
  • Eliminates hum and buzz from ground loops
  • Virtually zero phase & harmonic distortion
  • Exceptional signal handling and noise rejection
  • Compact stereo format for twice the performance

The pure sound of the instrument

The Radial JDI Stereo is a passive two-channel direct box designed to handle extreme signal levels without distortion of any kind. It employs two world-class Jensen JT-DB-EPC audio transformers to deliver a smooth, warm-sounding Bessel curve, reminiscent of the finest vintage gear. Ruler flat from 10Hz to 40kHz and with virtually zero phase deviation, the JDI Stereo delivers the natural, pure sound of the instrument without artifact. By its no-power passive design, the JDI Stereo performs both high-to-low impedance conversion and signal to balance over a magnetic bridge that passes the signal while rejecting stray DC voltage. This makes it particularly adept at eliminating hum and buzz caused by ground loops.

The Radial JDI Stereo is a two-channel passive direct box that is equipped with two Jensen audio transformers. These amazing devices not only balance the signal but also lower the impedance to allow long cable runs without noise. Each transformer features a unique nickel core stack, proprietary winding technique, dual Faraday shields to eliminate high-frequency noise and a protective outer MuMETAL® can protect against external fields. This results in exceptionally low distortion of all types while being able to handle extreme transients at all frequencies. With its heavy-duty steel shell and internal I-beam construction, the JDI Stereo is designed to work dependably for years in even the harshest of touring environments. The JDI Stereo is quite simply the world’s finest passive stereo direct box.

Audio circuit type:Passive, transformer based
Transformer:Jensen JT-DBE
The number of channels:Two channels (dual mono)
Frequency response:20Hz ~ 20KHz (± 0.2dB)
Dynamic range:135dB
Total harmonic distortion:0.05% from 20Hz ~ 20kHz @-10dB
Phase Deviation:0.3° @ 100Hz; 3° @ 20Hz
Input Impedance:140k Ohms, unbalanced
Output Impedance:150 Ohms, balanced
Maximum Input:+21dB @ 20Hz ~ 20kHz
Input pad, Ground lift
Input Connectors:Unbalanced 1/4″
Output Connectors:XLR out, 1/4″ thru
Construction:14 gauge steel chassis & outer shell
Size (L x W x D):5″ x 3.3″ x 1.8″ (127mm x 84.1mm x 45.5mm)
Weight:1.55 lbs (703 grams)
Shipping size (L x W x D):6.5″ x 4″ x 3″ (165mm x 102mm x 76mm)
Shipping weight:1.92 lbs (870.9 grams)
Power:Passive, no power required
Conditions:For use in dry locations only between 5°C and 40°C
Warranty:Radial 3-year, transferable


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