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DIRECT-DRIVE
User Guide
Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam BC V3C 5M5
Tel: 604-942-1001 • Fax: 604-942-1010 • Email: info@radialeng.com

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Summary of Contents for Radial Engineering JDX Direct-Drive

  • Page 1 DIRECT-DRIVE User Guide Radial Engineering Ltd. 1588 Kebet Way, Port Coquitlam BC V3C 5M5 Tel: 604-942-1001 • Fax: 604-942-1010 • Email: info@radialeng.com...
  • Page 2 ATTENTION The JDX Direct-Drive™ must be powered with an isolated power supply (either a separate power supply or a multi-out power sup- ply with each output being isolated.) If an un-isolated power supply is used to power the Direct-Drive in conjunction with another device that is also using the same un- isolated power supply the Direct-Drive will shut down as a safety feature to prevent damage to the unit.
  • Page 3: Table Of Contents

    Warranty ................. Back Cover Thank you for choosing the Radial™ JDX Direct-Drive™. We believe this to be one of the most effective and convincing tools for guitarists that play on the stage or in the studio, and want to do so without the use of a guitar amp.
  • Page 4: Overview

    OVERVIEW The JDX Direct-Drive™ is a unique device that emulates the sound of a guitar amplifier while doubling up as a direct box. In other words, with the Direct-Drive on a pedalboard, you can do a gig without carrying an amp to the club or record silently using all your favorite pedals.
  • Page 5: Features

    9. AMPLIFIER: Selects between COMBO, STACK and JDX for distinctive amp tones. 10. PRESENCE: 2-position switch with bypass and on for extra sparkle on the STACK & COMBO settings. 11. POWER: LED lets you know the Direct-Drive is ready and on. Radial Engineering Ltd. JDX™ Direct-Drive™ User Guide...
  • Page 6: Making Connections

    WARNING: If using a multi-pedal power supply, you must ensure the DC outputs are isolated. If not properly isolated, the power supply can damage the JDX Direct-Drive. Please consult the power supply manufacturer to ensure the outputs are isolated before connecting.
  • Page 7: Tone Voicing

    You are now ready to add your guitar pedals. For fun, plug your guitar into your overdrive, chorus and delay. Now go back and retest the amp settings using distortion and effects. This is where the Direct-Drive truly comes to life! Radial Engineering Ltd. JDX™ Direct-Drive™ User Guide...
  • Page 8: Rear Panel Connections

    Bypasses all amp simulation and sends an untouched signal to your stage amp. TUNER Used to connect a tuner – keeping it out of the signal path. Used to send the wet amp tone to recorder or second amplifier. Radial Engineering Ltd. JDX™ Direct-Drive™ User Guide...
  • Page 9 Lifting the ground disconnects the audio ground in between the Direct-Drive and the PA or recording system which can often alleviate noise. If you hear buzz, try pushing the switch upwards. Radial Engineering Ltd. JDX™ Direct-Drive™ User Guide...
  • Page 10: Block Diagram

    BLOCK DIAGRAM* * Subject to change without notice. Radial Engineering Ltd. JDX™ Direct-Drive™ User Guide...
  • Page 11: Specifications

    Power: ..........................9V / 40mA (center pin negative) Construction: ............................... Steel Enclosure Size: (LxWxD) ............................4.75” x 3.625” x 2” Weight: ...............................1.40 lbs (0.64kg) Warranty: ............................ Radial 3-year, transferable * Subject to change without notice. Radial Engineering Ltd. JDX™ Direct-Drive™ User Guide...
  • Page 12 1588 Kebet Way, Port Coquitlam BC V3C 5M5 Tel: 604-942-1001 • Fax: 604-942-1010 • Email: info@radialeng.com Radial JDX Direct-Drive™ User Guide - Part #: R870 1022 00 / 05-2016 Copyright © 2016, all rights reserved. Appearance and specifications subject to change without notice.