Radial Engineering JDI-MK3

Passive DI, Ground Lift, Jensen Transformer, 10-80 kHz

OUR PART #: JDI-MK3 5.0 / 5 ★★★★★ 1 Review  |  Write a Review

Our Price: $199.99
List Price: $220.00
You save 9%!
  • Jensen Transformer equipped passive DI
  • 100% isolation eliminates ground loops
  • Virtually zero phase & harmonic distortion
  • Exceptional signal handling
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The Radial JDI is considered by many to be the world’s finest direct box. It is a passive DI that employs a Jensen isolation transformer for optimum audio performance offering outstanding linearity at all frequencies, combined with extraordinary level handling without introducing distortion. Being completely passive, the plug & play JDI does not require any powering and has the unique advantage of eliminating 60-cycle ground loops. This makes the JDI a definite favorite with informed audio engineers.

The JDI is great for guitars, bass, and keyboards and is particularly adept with high-output, broadband instruments such as active instruments and digital keyboards. The JDI may be rack-mounted using the J-Rak and is also available in a stereo (2-channel) version called the JDI Duplex and the 6-channel rack-mountable JD6.

Radial Engineering JDI-MK3 Features:

  • Jensen Transformer equipped passive DI
  • 100% isolation eliminates ground loops
  • Virtually zero phase & harmonic distortion
  • Exceptional signal handling
  • High common mode noise rejection

Radial Engineering JDI-MK3 Specifications:

  • Dynamic Range: 135 dB
  • Signal to noise: 119 dB @ 100 Hz
  • Maximum input: +19V
  • Frequency Range: 10 Hz-40 kHz
  • Linearity 20-20kHz: 0.1 dB
  • Phase coherence: 4º at 20 Hz, 0º at 1 kHz
  • Distortion at 20 Hz: < 0.006%
  • CMR rejection: 100 dB @ 60 Hz
  • Input Impedance: 10 kohm
  • Output Impedance: 600 ohm
  • Construction: Welded steel
  • Finish: Baked enamel
  • Input connectors: Two 1/4" phone
  • Output connectors: XLR male
5.0 / 5 ★★★★★

Reviewed by 1 customer.
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Joseph S on 04/08/2018 ✔ Verified

Excellent quality, rugged and dependable, These units perform prove the adage, "You get what you pay for". I have purchased cheaper units in the past, but none of them sound as good, or have the build quality that these units have.

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