Radial JDI

Passive DI

Description

The JDI is a high performance passive direct box for live concert touring and professional studio recording applications, featuring a premium Jensen transformer for exceptional audio performance.

  • Jensen Transformer equipped passive DI
  • Eliminates hum and buzz from ground loops
  • Virtually zero phase & harmonic distortion
  • Exceptional signal handling and noise rejection

Pure Sound of the Instrument

The Radial JDI is a passive direct box designed to handle extreme signal levels without distortion of any kind. At the heart, the Radial JDI employs the world-class Jensen JT-DB-EPC audio transformer delivering 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 delivers the natural, pure sound of the instrument without artifact. By its no-power passive design, the Radial JDI performs both high-to-low impedance conversion and signal balancing over a magnetic bridge that passes signal while rejecting stray DC voltage. This makes the JDI particularly adept at eliminating hum and buzz caused by ground loops.

The Radial JDI is a phase-coherent, passive direct box employing a nickel laminated Jensen® audio transformer with virtually zero phase distortion, huge dynamics handling and ruler flat response from 10Hz to 40kHz. The Radial JDI is quite simply the world’s finest passive direct box. With its heavy-duty steel shell and internal I-beam construction, the JDI is designed to work dependably for years in even the harshest of touring environments. Ideal for keyboards, bass and acoustic instruments of all kinds, the JDI Duplex, and JD6 are also available for stereo and multi-channel applications.

Specifications
Audio circuit type:Passive, transformer based
Transformer:JT-DB-EPC
Number of channels:Single channel (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
Features
Input pad, Mono Sum, 180° polarity reverse, Ground lift, Speaker filter
General
Construction:14 gauge steel chassis & outer shell
Finish:Durable powder coat
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

Additional information

Weight2 lbs
Dimensions7 × 4 × 3 in

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