Description
The World's Finest Stereo Direct Box
The Radial JDI Stereo brings unprecedented sonic transparency and accuracy to any stereo instrument – providing the artist with the freedom to focus on their music.
 | Features
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Pure sound of the instrumentThe Radial JDI Stereo is a passive two-channel direct box designed to handle extreme signal levels without distortion of any kind. It employs two world-class Jensen JT-DB-EPC audio transformers to deliver 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 Stereo delivers the natural, pure sound of the instrument without artifact. By its no-power passive design, the JDI Stereo performs both high-to-low impedance conversion and signal balancing over a magnetic bridge that passes signal while rejecting stray DC voltage. This makes it particularly adept at eliminating hum and buzz caused by ground loops. |  |
SGI Applications
 Two basses connected to amps and PAThe JDI Stereo is perfect for sending the pure bass signal to the PA system. Use the Thru connectors to feed two channels on your amp. |  Stereo laptop with controller keyboardThe Jensen equipped JDI Stereo is able to gracefully handle extreme transients from your digital piano, laptop or DJ mixer without choking. |  Two acoustic guitars connected to the PAThe smooth sounding Jensen transformers smooth out the peaks from your acoustic guitar to produce a nice rich, warm tone. |
Specifications
The Radial JDI Stereo is a two channel passive direct box that is equipped with two Jensen audio transformers. These amazing devices not only balance the signal, but also lower the impedance to allow long cable runs without noise. Each transformer features a unique nickel core stack, proprietary winding technique, dual faraday shields to eliminate high frequency noise, and a protective outer MuMETAL® can to protect against external fields. This results in exceptionally low distortion of all types while being able to handle extreme transients at all frequencies. With its heavy-duty steel shell and internal I-beam construction, the JDI Stereo is designed to work dependably for years in even the harshest of touring environments. The JDI Stereo is quite simply the world’s finest passive stereo direct box.
Specifications
- Audio circuit type: Passive, transformer based
- Transformer: Jensen JT-DBE
- Number of channels: Two channels (dual mono)
- Frequency response: 20Hz ~ 20KHz (± 0.2dB)
- Dynamic range: 135dB
- 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
- Maximum Input: +21dB @ 20Hz ~ 20kHz
Features
- Input pad, Ground lift
- Input Connectors: Unbalanced 1/4"
- Output Connectors: XLR out, 1/4" thru
General
- Construction: 14 gauge steel chassis & outer shell
- 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
Block Diagram
Graphs
Frequency Response |
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 Fast Fourier Transform |
 IMD vs Output |
 Noise Spectrum |
 Distortion vs Frequency |
 Distortion vs Output |
 Phase Shift |
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Additional Information
WARNING: |
This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Please take proper care when handling and consult local government regulations before discarding. |
