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
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