Radial JDI Stereo

The World's Finest Stereo Direct Box

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.

• 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

Pure sound of the instrument
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.

FEATURES

Thru
Thru-put from the JDI Stereo to the amp. Hi impedance will not load instrument down.

Inputs Left & Right
Unbalanced 1/4” input jacks used to connect instruments to the JDI Stereo.

-15dB Pad
Reduces the input sensitivity for active basses and high output keyboards.

XLR Out
Balanced 150Ω mic-level output wired to the AES standard with pin-1 ground, pin-2 (+) and pin-3 (-).

Ground
Disconnects pin-1 at XLR output to reduce hum and buzz caused by ground loops.

No Slip Pad
Provides electrical & mechanical isolation and keeps the JDI Stereo from sliding around.

Powder Coat
Durable finish keeps your JDI Stereo looking great for years.

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
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