Up for sale a Radial Engineering JDI Passive Direct Box Jensen Transformer Equipped Passive DI!  We are an Authorized Dealer of Radial Engineering!  This item is Brand New / Never Displayed and it comes with the Full Manufacturer's Warranty*.  Unit comes in its Original Packing.

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RADIAL ENGINEERING JDI PASSIVE DIRECT BOX

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 Jensen audio transformer as the engine. Jensen 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 ¼” 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 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 MuMETAL 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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FEATURES:

- Jensen Transformer equipped passive DI

- Eliminates hum and buzz from ground loops

- Virtually zero phase & harmonic distortion

- Exceptional signal handling and noise rejection

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SPECIFICATIONS:

Audio circuit type: Passive, transformer based

Number of channels: Single channel (mono)

Frequency response: 20Hz ~ 20KHz (± 0.2dB)

Dynamic range: 135dB 

Maximum input: +21dB @ 20Hz ~ 20kHz 

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 

Transformer: Jensen JT-DBE

Shield: Dual Faraday, MuMETAL can

Input pad: -15dB  

Merge: Sums left & right sources to mono

180° polarity reverse : Inverts absolute phase

Ground lift : Disconnects pin-1 at XLR output 

XLR configuration : AES standard (pin-2 hot) 

Speaker filter : -30dB pad and band-pass filter 

Connectors : 1/4" in & thru, XLR-M out

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

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*The Full manufacturer's warranty is only valid through us.

All our items are fully verified by our pro technician and/or adjusted by our pro luthier before being very carefully packed by our pro service team here at the shop prior to shipment, buy with confidence!

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Canadian customers must pay any applicable sales taxes.

Please refer to the shipping and payments details for prices.
**Depending on your location, free shipping may not apply to certain heavy or oversize orders.
 You can contact us for confirmation before buying.

Shipping cost to USA includes lower 48 states only.

For any other locations, please send us an email for a quote!


We Ship Worldwide!!!

To international buyers (outside Canada): Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.

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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • JDI
Categories
Made In
  • Canada

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Quebec, Canada
Sales:4,298
Joined Reverb:2016

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