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Radial J48 Stereo Premium Active DI

Item: PAH0018234-000
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The Radial J48 Stereo is a Premium Active DI box with +48V phantom power, optimised to allow maximum headroom for low current.  All product info

€ 345.00 ca. lei 1,640.99
incl. VAT, plus Shipping Costs
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J48 Stereo - Phantom Powered Active Direct Box

Radial J48 Stereo Premium Active DI with +48V Phantom Power

The Radial J48 Stereo Premium Active DI is a high performance active direct box designed for professional touring and studio recording. It features the same award-winning signal path that has made the single-channel J48 the most specified active direct box on tour today. Users as diverse as Paul McCartney, Tommy Emmanuel and Joe Chiccarelli all make use of J48 active DIs.

Radial J48 Stereo

The design begins with a rugged 14-gauge steel construction and a bookend design that protects sensitive switches and connectors from damage. The internal I-beam construction ensures the fragile internal PC board will not torque, which in turn could lead to cold solder joints developing and premature failure. All connectors are made from glass-filled nylon and feature extra-large nickel-silver contacts that will not tarnish over time.

Inside, a unique switching power supply converts the +48V phantom to AC, increasing the headroom for improved signal handling and lower distortion. This results in an exceptionally linear frequency response that spans from 10Hz-40kHz while being able to handle high-output instruments without choking. In addition, a -15dB pad may be engaged for extreme signal handling. This is supplemented with a high-pass filter that gently rolls off low frequencies below 80Hz to clean up mud and excessive resonance. A side-access 180º polarity reverse aids when using the J48 Stereo with dual element pick-ups to either phase align the sources or eliminate acoustic hot-spots that can cause feedback on stage.

A unique aspect of the power supply is the way that the J48 handles buzz and hum caused by ground loops. The traditional solution is to lift the audio ground by disconnecting pin-1 at the XLR output. When this is done, the +48V phantom power from the console is shut off, forcing one to introduce a battery into the equation. Unfortunately, batteries are inconsistent, and when they begin to drop power, severely affect the available voltage and resulting headroom. Instead, the J48 employs a DC to DC converter with a high frequency transformer that enables the audio ground to be lifted at the power supply. This does not shut off the phantom power and is invisible to the user.

The main features of the Radial J48 Stereo Premium Active DI include:

  • High Performance Stereo Active Direct Box
  • +48V Phantom Power
  • -15dB Pad
  • 80Hz Low-Cut Filter
  • 20Hz-20kHz Frequency Response
  • Steel Chassis
  • Inputs: 2x ¼" In & Thru
  • Outputs: 2x XLR
  • Dynamic Range: 109dB
  • Maximum Input: +10dBu
  • Manufacturer No.: R800 3002 00
  • Dimensions (LxWxD): 84 x 127 x 48mm
  • Weight: 720g
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Features:

  • Manufacturer: Radial
  • Signal Processing: Active
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