Radial Engineering JDI Stereo Passive Direct Box

The Radial Engineering JDI Stereo is a professional-grade passive direct box designed for high-quality stereo signal conversion in live sound, studio recording, and broadcast applications. Built around dual premium Jensen transformers, it delivers exceptionally clean, transparent audio with ultra-low distortion and outstanding phase accuracy.

Engineered for stereo instruments such as keyboards, digital pianos, acoustic instruments with stereo outputs, and effects processors, the JDI Stereo ensures both left and right channels maintain full clarity, depth, and dynamic range. Its passive design requires no external power, providing maximum reliability and noise-free operation in any environment.

Each channel benefits from superior impedance matching and transformer isolation, helping eliminate ground loops, hum, and signal degradation over long cable runs. A ground lift switch further improves noise rejection, ensuring stable performance on complex stage setups.

Housed in a rugged 14-gauge steel chassis with internal I-beam construction, the JDI Stereo is built to withstand demanding touring conditions while maintaining the pristine audio quality Radial is known for.

Key Features:

• Professional stereo passive direct box
• Dual Jensen transformers for ultra-clean signal conversion
• Designed for keyboards, acoustic instruments, and stereo sources
• Exceptional headroom with ultra-low distortion performance
• Passive design—no power required
• Transformer isolation eliminates hum and ground loops
• Ground lift switch for noise reduction
• Maintains full stereo imaging and dynamic range
• Rugged steel chassis built for touring and studio use