Item #: RAD JDIDUPLEX LIST

Radial JDI Duplex Stereo Passive Direct Box

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Product Description

Radial JDI Duplex is a two channel direct box for stereo keyboards, stereo iPODs, mixers, recorders, guitar or bass rigs.The Duplex is a full-featured passive DI designed to enhance connectivity for the touring professional and AV integrator. The Duplex comes equipped with 1/4 inch connectors for -10dB consumer electronics and XLR inputs for +4dB professional line sources.

Each Duplex channel employs the same high-performance Jensen audio transformer as the industry standard Radial JDI direct box and has the same pristine audio signal path with virtually zero phase, harmonic and linear distortion. Natural transformer saturation and warm Bessel curve makes the Radial Duplex the perfect choice for rounding out highly dynamic instruments, like digital keyboards, that can sound harsh when driven hard. Transformer isolation also provides the benefit of eliminating troublesome ground loops that can cause hum and buzz and can interfere with video displays.

Radial's innovative book-end design provides protective zones that shield connectors and switches from the abuses of professional touring . A welded I-beam inner frame is designed to eliminate outside stresses that could torque the PC board and cause premature solder point and trace failure. A 14-gauge steel shell couples with the mu-metal transformer shield to eliminate stray magnetic field interference from power transformers and a full-bottom no-slip pad provides plenty of stay-put and helps reduce electrical coupling from amplifier chassis hardware.

The Radial JDI is considered by many to be the world’s finest direct box.

Summary
The Radial JDI is Jensen Transformer equipped, high quality passive direct box that has the advantage of providing complete isolation for reduced noise. The exceptionally low phase distortion, almost perfect linear response and low harmonic distortion make the JDI a superb choice for critical recording or live performance. The rugged construction allows the JDI to be used in the most abusive environments without concern for damage. The Radial JDI Duplex is ideal for acoustic guitars, bass, and keyboards.

CALIFORNIA PROPOSITION 65 WARNING
warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Product Specifications

Specifications

  • Type: Passive Jensen Transformer equipped
  • Input Impedance: Unbalanced 140k-Ohms typical
  • Output Impedance: Balanced 150 Ohms typical
  • Frequency Response: 10Hz to 40kHz
  • Linear Performance: < -0.22 dBr deviation @20kHz
  • Total Harmonic Distortion: 0.05% @ 20Hz, 0.005% @ 1kHz
  • Phase Distortion: < 4º at 20Hz, 0.3º at 1kHz
  • CMR: 100dB @ 60Hz
  • Maximum Input Level: +22dBu
  • Size: 3.5 inches wide, 2 inches high, 5.5 inches deep
  • Weight: 2.2 lbs (1kg)
  • Construction: Welded 14-gauge steel
  • Finish: Baked enamel
Helpful Info about the Manufacturer
Phone:  604-942-1001 Warranty:  3 Year Transferrable
Mike H. from Round Rock, TX Submitted: 5/25/2014
Product Rating
verified
Subject
HUGE improvement
Product Rating
Your general opinion of this product.
I was experiencing some hum and buzz in my 1/4" patchbay that I finally traced to my MPC 2000XL. I was under the previous assumption that the MPC had balanced TRS out but I was wrong. After adding the JDI Duplex in between not only is the impedance matched but I have a balanced signal that I can feed into my pre amp of choice. I no longer experience the annoying 60Hz noise. I plan on purchasing another one of these for my Roland XV-3080 soon. Love it!
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Marvin Submitted: 2/25/2013
Product Rating

Subject
Clear Smooth Sound
Your general opinion of this product.
Recommend this product especially if you have high quality equipment
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Audio Engineer from Chicago Submitted: 1/24/2011

Subject
Engineer's Toolbox "Must Have"
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