Radial JDI Passive Direct Box, with Jensen Transformer

The JDI radial is a passive direct box designed to handle extreme signal levels without any distortion. Unlike an active DI that is limited by the input voltage of the circuit, the JDI uses a Jensen audio transformer as the main engine. Jensen transformers are legendary in their ability to gracefully handle transient levels while offering a smooth, warm Bessel resonance curve, reminiscent of the best vintage gear. Flat response from 10Hz to 40kHz and with practically zero phase deviation, the JDI transmits the natural, pure sound of the instrument without artifices. The 100% passive circuit within the JDI is incredibly efficient. The transformer performs both the high to low impedance conversion and the equilibrium signal at the same time with a minimum load and does so without any power at all. The transformer also introduces a magnetic bridge that passes while rejecting the lost DC voltage signal. This makes the JDI particularly adept at eliminating buzz and buzz caused by mass loops.Features include input and performance ¼" connectors, 15dB input fader, mass separation, and 180 ° degree Reverse polarity to help Phase Align the instrument with the PA. A secondary circuit is added for direct connection with high-output devices, such as the guitar or bass amplifier speakers plus a unique combination function allows stereo sources as keyboards to add mono, saving the input channels Value.Sturdy construction to handle abuse of live tours, the JDI features a steel I-beam 14 gauge inner frame and a single-end book outer shell.Innovative design eliminates stress on the PCB, reducing opportunities for welding joints to go "cold", while the outer shell creates a protection zone around the switches and connectors. The electromagnetic noise pollution resistant steel housing and sensitive transformer internal operation are protected further from magnetic fields with a mu-metal can. This ensures the signal transfer is quiet and free from buzzing. These combined features have made the most popular passive direct box on professional tours and an excellent option for the instrument interface in the JDI radial studio....the world's finest passive direct box.