Now with dual -10dB RCA connectors and dual +4db XLR inputs.
Passive DI employs a Jensen isolation transformer for optimum audio performance
offering outstanding linearity at all frequencies, combined with extraordinary
level handling without introducing distortion. The completely passive plug &
play JDI does not require any power and has the unique advantage of eliminating
60-cycle ground loops. This makes it a definite favorite with informed audio
engineers. Great for guitars, bass, and keyboards and particularly adept with
high-output, broadband instruments such as active instruments and digital
keyboards. May be rackmounted using the J-RAK Adaptor (not
included).

Housed in a 14 gauge steel welded I-beam chassis, it protects
all connectors and switches with a unique book-end design. The input panel is
equipped with a pair of 1/4" and RCA inputs and thru-puts. A unique Merge
function provides passive mix to convert the in/thru routing into a
stereo-to-mono mix function-a valuable channel saver for large keyboard rigs and
multiple audio sources. Each channel is also outfitted with a 10kHz low-pass
filter to eliminate high-frequency system noise and a 15dB pad for greater
source control. A switch on each channel allows the user to select the XLR male
input. This simultaneously introduces a 20dB pad to allow high output +4dB line
level devices to interface into snake systems and splitters without requiring an
external attenuator. The rear panel features the XLR inputs and outputs along
with polarity reverse and ground lift.

Radial JDI Duplex mk4 Stereo Direct Box
Features:

• -10dB RCA connectors


• +4db XLR inputs


• Jensen transformer-equipped passive DI


• 100% isolation eliminates ground loops


• Virtually zero phase & harmonic distortion


• Exceptional signal handling


• High common mode noise rejection