Related Manuals for Radial Engineering J48 MK2
Summary of Contents for Radial Engineering J48 MK2
- Page 1 User Guide Radial Engineering 1638 Kebet Way, Port Coquitlam BC V3C 5W9 tel: 604-942-1001 • fax: 604-942-1010 email: info@radialeng.com • web: www.radialeng.com Radial Engineering is a division of C•TEC (JP CableTek Electronics Ltd.)
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Page 2: Table Of Contents
604-942-1001 • fax: 604-942-1010 email: info@radialeng.com • web: www.radialeng.com Radial Engineering Ltd. is a division of (JP CableTek Electronics Ltd.) C•TEC Features and specifications are subject to change without notice. J48 MK2 - Manual V3.1 05/20/05 part #: R800-9616-00... -
Page 3: Introduction
Radial J48 so that you can maximize it’s potential. Please log onto www.radialeng.com for further details and updates. We also invite you to forward any comments, questions or suggestions to info@radialeng.com. We love to hear from you! Enjoy. Radial Engineering J48 User Guide... -
Page 4: Input & Output Panel Feature Set
The innovative bookend cover provides protection to by ground loops. switches and connectors against damage during hectic 10. Full bottom no-slip pad stage set-ups. Provides mechanical isolation to reduce slipping and electrical isolation from amplifier frames and handles. Radial Engineering J48 User Guide... - Page 5 Oversized capacitors produce maximum headroom. The military grade double-sided PC board provides maximum durability and added resistance against 17. Baked-on enamel finish cold solder joints. Great looks on stage or in the studio for years to come. Radial Engineering J48 User Guide...
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Page 6: J48 - Quick Start For Pros
If so, the polarity reverse switch would allow both the mic and the J48 to be set ‘in-phase’ should these be reversed. You are now ready to go! Now, close your eyes and listen. The J48 is without a doubt one of the most musical DI boxes manufactured today. Radial Engineering J48 User Guide... -
Page 7: Direct Box Basics
Balanced signals are the norm in professional recording, broadcast and live sound. By properly matching the impedance you will enjoy better sound, less noise and an extended frequency response. Typical DI box setup Radial Engineering J48 User Guide... - Page 8 It’s pretty simple: less power – less headroom. Phantom power solved the problem by providing a remote power source that could eliminate the battery. Eureka! Phantom power gave us a stable power supply and no batteries to worry about. Radial Engineering J48 User Guide...
- Page 9 Ultimately, a good direct box should be plug and play easy to use. The J48 is a sophisticated device on the inside that is designed to be easy to use on the outside. By understanding the design, we feel that you can make better use of the features that are built into this marvelous direct box. Radial Engineering J48 User Guide...
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Page 10: Features And Functions
Note: On live stages, it is common that instruments such as acoustic guitars would connect directly to a snake system and the signal would be split like the microphones to the stage monitors for fold-back. In these cases, the thru jack would not be connected. Radial Engineering J48 User Guide... - Page 11 IN and THRU jacks, depress the MERGE switch to the ON position and you are set to go. The internal resistive mixer is set up to do this without posing any problems such as phase cancelling. Radial Engineering J48 User Guide...
- Page 12 Equipment is Equipment is connected connected through audio through A/C connection. ground. Audio trans- former The Cure: The Problem: ground loop between isolate equipment with an audio transformer. equipment. Radial Engineering J48 User Guide...
- Page 13 This performs several important functions. To begin, it provides plenty of ‘stay-put’ on hectic stages. This keeps the DIs from falling off amplifiers or sliding around when they are stacked. The no-slip pad also works as an Radial Engineering J48 User Guide...
- Page 14 Radial products in two RU spaces. These can be front or rear mounted allowing the system designer to have the XLRs on the front or rear of the rack, depending on the application. Radial J-Rak Radial Engineering J48 User Guide...
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Page 15: Frequently Asked Questions
7 volts. Considering that most DI’s can barely manage 3 volts, its no wonder guitars often sound harsh in a PA system. The Radial J48 was specifically designed to solve this problem by increasing the internal rail voltage so that these high output instruments would not overload the DI’s input. Radial Engineering J48 User Guide... - Page 16 Simply contact your dealer or call Radial and we will issue a return authorization number and you can send it back to us for repair. We do suggest that before you do so, visit the dealer where you bought it and have them check it before sending it away. Often times, cables can be the problem. Radial Engineering J48 User Guide...
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Page 17: Block Diagram And Specifications
True to the Music BLOCK DIAGRAM AND SPECIFICATIONS J48 MK2 Specifications Type: Active 48V with switching supply Input impedance: Unbalanced 220K-Ohms Output impedance: Balanced 600-Ohms Frequency response: 10Hz to 80kHz Linear performance: +/- 0.12dB from 20Hz to 20kHz Total harmonic distortion: 0.06% @ 20Hz, 0.005% @ 1kHz... -
Page 18: Warranty
RADIAL ENGINEERING - 3 YEAR LIMITED WARRANTY RADIAL ENGINEERING (a division of J.P Cabletek Electronics Ltd.) warrants this product to be free from defects in material and workmanship to the original owner and will remedy any such defects free of charge according to the terms of this warranty.