Irmo, SC, United States
About this listing
Front End Audio frequently has gear that has been opened and used for demo purposes in our in-house studio. These microphones have only been handled by our staff and are otherwise just like new. They includes everything as if new and have been repackaged in the original manufacturer packaging. So if you don't mind an occasional fingerprint or second layer of tape on the box, then you can grab a great deal on a Radial JDI today!
The Radial JDI Passive Direct Box is a studio and stage classic, delivering pristine instrument-to-microphone level conversion with exceptional clarity and musicality. Trusted by engineers and touring professionals worldwide, the JDI combines Radial’s rugged build quality with the legendary Jensen transformer to capture instruments with depth, punch, and natural tone. At the heart of the Radial JDI is a premium Jensen transformer that provides superior signal isolation and remarkable sonic performance. This high-quality transformer preserves the full character of guitars, basses, keyboards, and other line-level sources while eliminating ground loops and reducing noise. The passive design allows the JDI to handle high signal levels without distortion, making it a reliable choice for demanding live and studio applications. The JDI also includes a -15 dB pad for high-output instruments and line-level signals, along with a ground lift switch to eliminate hum and buzz caused by ground loops. Housed in Radial’s durable 14-gauge steel enclosure with protective internal architecture, the JDI is built to withstand years of heavy use while delivering consistent, professional-grade performance. 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!
Radial JDI Passive Direct Box Features
Jensen Transformer equipped passive DI
Eliminates hum and buzz from ground loops
Virtually zero phase & harmonic distortion
Exceptional signal handling and noise rejection
Best-sounding passive DI in the world
Authentic Jensen Transformer equipped passive DI
Linear frequency response from 10Hz ~ 40kHz
Extraordinary level handling without distortion
Built to survive the road
Plug-&-Play Design - Easy-to-use!
No battery or phantom-power required
Impossible to overload!
Up to 8 may be rack-mounted with the J-Rak
Radial JDI Passive Direct Box Applications
Ideal for acoustic guitars and basses
Keyboards, modules and electronic drums
Great with high-output, electronic instruments
Eliminates hum & buzz in sound systems
Radial JDI Passive Direct Box Specifications
Specs:
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
Features:
Transformer: Jensen JT-DBE, 12:1 ratio
Shield: Dual Faraday, mu-metal can
Input Pad: -15dB
Merge: Sums left & right sources to mono
180-degree 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-inch in & thru, XLR-M out
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
Radial JDI Passive Direct Box Includes
Radial JDI Passive Direct Box
Manual & Literature
Radial Sticker
Manufacturer Warranty
PriceA$324.22
+ A$146.57 Shipping
A$88.81 shipping when combined





