Radial Engineering JDI Stereo – Dual Passive DI with Jensen Transformers

The Radial Engineering JDI Stereo is a premium dual-channel passive direct box designed for pristine audio performance in both studio and live environments. Featuring legendary Jensen transformers, exceptional headroom, and ultra-linear frequency response, the JDI Stereo ensures your instrument’s tone remains pure and uncolored while eliminating hum and noise. Built for professionals, it's ideal for stereo keyboards, acoustic instruments, playback rigs, and any high-fidelity DI application.

Key Features

• Dual Jensen transformers: Provide unmatched clarity, low distortion, and natural warmth.
• Stereo passive design: Perfect for keyboards, DJ rigs, stereo instruments, and dual mono sources.
• Ultra-wide frequency response: Flat from 10 Hz to 40 kHz for transparent signal reproduction.
• Noise elimination: Transformer isolation, Faraday shielding, and ground-lift switches remove hum and buzz.
• Rugged construction: 14-gauge steel housing with Radial’s protective bookend design for maximum stage durability.

Customer Benefits

The JDI Stereo delivers studio-grade transparency with zero coloration, making it a favorite among touring professionals and engineers. Its transformer-based passive design easily handles hot signals without distortion, ensuring reliable, noise-free performance in any setup.

Quick Specs

• Type: Stereo passive DI box
• Transformers: Jensen JT-DBE
• Frequency Response: 10 Hz – 40 kHz (flat)
• Pad: -15 dB per channel
• Inputs: 2 × 1/4" instrument inputs + 2 × thru outputs
• Outputs: 2 × balanced XLR
• Shielding: Internal Faraday cage
• Construction: 14-gauge steel with protective bookend design

What’s in the Box

• Radial Engineering JDI Stereo
• User documentation

Use Cases / Ideal For

Stereo keyboards, synthesizers, drum machines, DJ mixers, acoustic instruments with stereo outputs, playback systems, and professional touring/recording rigs.

Compatibility

Works seamlessly with mixers, interfaces, stage boxes, and professional PA systems. Ideal for long cable runs due to low-impedance balanced outputs.

Pros & Cons

✅ Pros:

• Industry-leading transformer audio quality
• Ultra-clean, transparent signal path
• Handles extreme signal levels without distortion
• Exceptionally rugged for touring

⚠️ Cons:

• Passive design may not be ideal for very low-output sources
• Higher price point compared to entry-level DI boxes

The Radial JDI Stereo is a gold-standard DI solution for musicians and engineers demanding unmatched sonic accuracy and reliability—available now at Soundium.