Durable for everyday use and high-caliber for crucial usage.

The Radial JDI MK3 is considered by many to be one of the finest passive-operation direct boxes available. It employs a Jensen isolation transformer for optimum audio performance. 60-cycle ground loop elimination and adept handling of high-output, active instruments and keyboards make it discrete and versatile. The Radial DI Box has a steel I-beam construction, baked enamel finish, and protected faceplate that mean it's built to survive.

Radial JDI MK3 Passive Direct Box Features:

100% passive design - no phantom power
Jensen transformer equipped
Dual function inputs w/2 channel merge
Polarity reverse switch
Speaker level input circuit
Ultra-durable welded steel chassis
Double sided printed circuit board
Protective channel for switches
Ground Lift and Pad switches
No-slip bottom pad

Radial JDI MK3 Passive Direct Box Specifications:

Dynamic range: 135dB
Signal to noise: 119dB
Maximum input level: +19dB
Frequency range: 10Hz~40kHz
Linearity 20~20kHz: 0.1dB
Phase coherence: 4 degrees at 20Hz
0 degrees at 1kHz
Distortion at 20Hz: 0.006%
CMR rejection 100dB @60Hz
Input impedance: 10kW
Output impedance: 600W
Construction: Welded steel
Finish: Baked enamel
Input connectors: Two 1/4" phone
Output connectors: XLR male