Radial JDI Stereo Passive DI Direct Box

Featuring Jensen transformers, this box gives you high-quality transient response and smooth tone. Perfect for stereo keyboards or when one DI isn't enough.

$379.99

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    $47.50
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    6 x  
    $63.33
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    4 x  
    $95.00

Radial JDI Duplex Stereo Passive DI Box

No longer available at zZounds
Maintain distortion-free sound in even the most demanding applications with this Radial stereo DI box. It's a fully passive unit that requires no powering.

The Radial JDI is a passive direct box designed to handle extreme signal levels without distortion of any kind. Unlike an active DI that is limited by the buffering amplifier's rail voltage, the JDI employs a Eclipse audio transformer as the engine. Eclipse transformers are legendary in their ability to gracefully handle transients while 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.

The 100% passive circuitry inside the JDI is incredibly efficient. The transformer performs both high-to-low impedance conversion and signal balancing at the same time with minimal loading and does so without any power whatsoever. The transformer also introduces 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.

Features include input and throughput 1/4" connectors, -15dB input pad, ground lift, and 180o degree polarity reverse to help phase align the instrument with the PA. A secondary circuit is added for direct interfacing with high output devices such as guitar or bass amp loudspeakers plus a unique merge function allows stereo sources such as keyboards to be summed mono, saving valuable input channels.

Built tough to handle the abuse of live touring, the JDI features a 14-gauge steel I-beam inner read more frame and a unique book-end outer shell. The innovative design eliminates stress on the PCB, reducing opportunity for solder joints to go 'cold' while the outer shell creates a protective zone around the switches and connectors. The steel casing resists noise-causing electromagnetic pollution and the transformer's sensitive inner workings are further protected from magnetic fields with a mu-metal can. This ensures the signal transfer is quiet and free from hum.

These combined features have made the Radial JDI the most popular passive direct box in professional touring and an excellent choice for instrument interface in the studio!

The Radial JDI... the world's finest passive direct box.
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- Harmonic Distortion @ 20Hz: 0.06%
- Linearity 20Hz-20kHz: +/- 0.2dB
- Phase distortion @ 20Hz: 4.3 degrees

For support or warranty questions, please contact the manufacturer:
Phone: 604-942-1001

Reviewers gave this product an overall rating of 4 out of 5 stars. (15 ratings)
Submitted April 18, 2015 by a customer from yahoo.com

"Good converter box"

Overall: 4 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Everything works as advertised, except by watching you tube videos I assumed it had a Jensen transformer, cracked it open it had eclipse et-db1, bought this to help with hum and patching in audio sources, also Di sent came with the 3.5 mm jack also, but schematic shows this will use both stereo channels I/O, still I feel I can use this for any situation that pops up in a pinch
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