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Radial Engineering JDI Stereo Passive DI – Direct Injection Box JDIStereo

JDI Stereo Passive DI – Direct Injection Box

SKU: JDIStereo Categories: , , Tags: , , , , , , , , ,


The JDI Stereo is a high performance 2-channel passive direct box for live concert touring and professional recording applications, featuring premium Jensen transformers for exceptional audio performance.

The 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.



• Jensen transformer equipped passive DI
• Eliminates hum and buzz from ground loops
• Virtually zero phase & harmonic distortion
• Exceptional signal handling and noise rejection
• Compact stereo format for twice the performance



• 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

• Input pad, Ground lift
• Input Connectors: Unbalanced 1/4″
• Output Connectors: XLR out, 1/4″ thru

• 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



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Weight .816 kg
Dimensions 15.9 × 10.8 × 7.6 cm