Radial JDI Passive DI box

RRP: *QS: $349

Special Price $329

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Radial JDI Passive DI box

RA-JDI
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Description

Radial JDI Passive DI box - Description

Radial JDI at a Glance:

  • Jensen transformer-equipped passive DI.
  • 100% isolation eliminates ground loops.
  • Virtually zero phase & harmonic distortion.
  • Exceptional signal handling.
  • High common mode noise rejection.
  • Welded I-beam construction.

Jensen transformer for optimum performance
The JDI's Jensen transformer is the product of decades of experience in transformer production. This transformer delivers optimum audio performance offering outstanding linearity at all frequencies, combined with extraordinary level handling without introducing distortion.

The input panel features a 1/4" instrument input and traditional thru-put. An innovative 'merge' function allows the thru-put to be converted to a second input to allow stereo to mono summing. This is often used to interface stereo sources such as keyboards or CD players in live shows where audio channels may be not always be plentiful. The JDI also sports a -15dB pad to interface with higher output levels.

The JDI's output panel features balanced 600-ohm XLR connector with pin-2 hot following the AES specification. A polarity reverse switch toggles pin-2 and pin-3 to allow the JDI to interface with older non-AES equipment and for creative tinkering. The ground lift switch disconnects the XLR pin-1 ground from the JDI for 100% input-to-output isolation.

Finally, a second -30dB pad may be engaged that, when used in tandem with the -15dB input pad, allows the JDI to be connected in parallel with a speaker. This, for instance, allows the engineer to 'tap' the sound coming from a guitar amplifier speaker 'post distortion' thus adding another creative dimension. This unique function incorporates a speaker emulation filter circuit that rolls off highs and lows to more closely approximate the sound of a 12" driver.

Construction
As with all Radial direct box, the Radial JDI is designed for use in abusive environments such as on fast-paced stages of concert touring. An innovative book-end design provides a protective zone around the switches and connectors that makes it practically impossible to damage these components.

The inner skeletal frame features a unique 14-gauge welded I-beam construction that makes it impossible to torque the PC board. Stress on the printed circuit board can introduce intermittent solder joints, which by all accounts is the primary cause of direct box failure.

An innovative full-bottom no-slip rubberized pad works double duty by assuring the J48 won't slip and slide around when placed on an amplifier. The protective pad also ads an element of electrical shock resistance by providing a mechanical shield from guitar amp handles that are often directly coupled to the amp chassis.

Radial JDI Features:

  • Welded I-beam construction makes it impossible to torque the PC board. This virtually eliminates cold solder joints - the No.1 cause of system failure in the field.
  • An innovative 'slide-in-place' XLR trace makes it possible to use I-Beam girder construction.
  • Jensen transformer for distortion-free performance.
  • A military-grade PC board is employed for maximum wear and tear in abusive environments. Welded steel standoffs ensure the PC board will not shift.
  • A -15dB pad allows super hot inputs such as that from a CD player to be connected and balanced for long runs.
  • The Merge function turns the input and thru into a passive mixer to sum stereo feeds to mono at the XLR output. This saves valuable inputs on the mixer!
  • The input connects to the instrument.
  • The thru-put is connected to the instrument amplifier. The JDI has a high input impedance to reduce loading.
  • Book-end design creates a protective zone around the switches & connectors for best protection!
  • A heavy-duty baked enamel finish for excellent durability and great looks for years! 100% 14-gauge steel construction.
  • The XLR balanced mic level output provides 100% isolation for runs to 1000 feet without appreciable noise.
  • A polarity reverse switch flips the polarity from the AES standard Pin-2 to Pin-3 on the XLR and is used when combining sounds that may be out of phase.
  • The ground-lift disconnects the ground path to the transformer at the XLR output. This is used when a ground path is made at the input side such as with a keyboard.
  • The parallel speaker interface option introduces a second -30dB pad with band-pass filter to emulate a 12" guitar speaker.
  • A no-slip full bottom pad reduces mechanical vibration, improves electrical isolation and keeps the JDI from moving around on busy stages!

The Radial JDI is a solid choice onstage and in the studio!

Derringers Music is an Australian Authorised Dealer, offering full local warranties, no grey imports. With quality After Sales Service you would expect from an industry leader. With our prices, you would be crazy not give us a go! Negotiate your best price for the Radial JDI Passive DI box ! Challenging any online & counter Australian price. Call us today for your best price!

Manufacture
Radial

From critical professional applications through to complete home lifestyle environments, the past 28 years have seen audio and video technologies evolve and merge at an extraordinary pace. Throughout this amazing technological revolution, Amber Technology has constantly demonstrated an uncanny ability to predict future trends and constantly stay ahead of the curve in providing our diverse customer base with the tools they need as soon as they require them. The Amber team is well aware that our clients expect only the very latest and best from us so we constantly scour the world to stay abreast of possible future market directions and the technology to satisfy them. Our success over these past decades has been built on a formula of offering only the best and most innovative technology to our clients and backing it up with unmatched after-sales support. It is a policy that has enabled us to enjoy constant growth even in the most challenging economic conditions and our customers can be assured we will continue to provide them with the best the world has to offer into the future.

 

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