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Radial Engineering Manuals & User Guides

Radial Engineering manufactures high-performance professional audio tools, including direct boxes, signal processors, and switchers for stage and studio use.

Tip: include the full model number printed on your Radial Engineering label for the best match.

About Radial Engineering manuals on Manuals.plus

Radial Engineering is a globally recognized manufacturer of professional audio equipment based in British Columbia, Canada. Renowned for their durable, "tough-as-nails" construction and superior sound quality, Radial's products are designed to solve complex audio interface problems for musicians and sound engineers worldwide.

Their extensive catalog includes industry-standard direct boxes like the J48 and JDI, signal splitters, reampers, and the acclaimed Tonebone series of pedals. Whether for live touring or studio recording, Radial gear ensures reliable signal integrity and noise-free performance.

Radial Engineering manuals

Latest manuals from manuals+ curated for this brand.

Radial 500 Series Workhorse Powerhouse Rack User Guide

November 17, 2025
Radial 500 Series Workhorse Powerhouse Rack Specifications 10-slot 500 series rack MIL-SPEC PCB for durability Safety circuits to protect rack and modules +/-16V rail voltage and 48V phantom power indicators…

Radial R800 1018 J-Rak Rackmount Adapter User Guide

March 29, 2024
Radial R800 1018 J-Rak Rackmount Adapter Product Information Specifications: Product Name: Radial Direct Boxes Rackmount Adapter Model Numbers: R800 1018, R800 1016 Manufacturer: Radial Engineering Ltd. Warranty: Three-year transferable limited…

Radial OX8 8 Ch Rackmount Mic Splitter User Guide

June 14, 2023
Radial OX8 8 Ch Rackmount Mic Splitter Radial OX8 Microphone Splitter - User Manual Introduction The Radial OX8 is an eight-channel, balanced microphone splitter that divides the mic signals in…

Radial HotShot MD Stage Mic Switcher User Guide

User Guide
User guide for the Radial HotShot MD, a stage microphone switcher designed for momentary rerouting of dynamic microphones to multiple destinations, featuring easy control for vocalists and band communication.

Radial J48 Active Direct Box User Guide

User Guide
Comprehensive user guide for the Radial J48 Active Direct Box, detailing its features, functions, specifications, and warranty information for professional audio applications.

Radial HDI High Definition Studio Direct Box Owner's Manual

Owner's Manual
Comprehensive owner's manual for the Radial HDI High Definition Studio Direct Box, detailing features, connections, front and rear panel controls, specifications, and applications for professional audio recording and live performance.

Radial JDI Passive Direct Box User Guide

User Guide
Comprehensive user guide for the Radial JDI passive direct box, detailing its features, specifications, applications, and troubleshooting. Learn about its Jensen transformer, input/output impedance, and how to achieve optimal audio…

Radial JS3 3-Way Microphone Splitter User Guide

User Guide
User guide for the Radial JS3 3-Way Microphone Splitter, detailing its features, specifications, construction, and warranty. The JS3 is a passive mic splitter utilizing Jensen transformers for high-quality audio signal…

Radial Engineering manuals from online retailers

Radial Voco-Loco Microphone Effects Loop Switcher User Manual

R800 1425 00 • October 13, 2025
This manual provides comprehensive instructions for the Radial Voco-Loco Microphone Effects Loop Switcher (Model R800 1425 00), covering setup, operation, maintenance, and troubleshooting for integrating guitar effects pedals…

Radial J-Rak 4 Instruction Manual

Rad-3631 • August 14, 2025
The Radial J-Rak 4 is a 1U rack shelf designed to efficiently organize and mount up to four Radial JDI-sized direct interfaces within a standard equipment rack. This…

Radial Reamp HP Passive Reamping Device User Manual

R800 1038 • July 31, 2025
The Radial Reamp HP is a passive reamping device that converts line-level headphone outputs to instrument-level signals. Ideal for reamping guitar, bass, and vocal tracks through amplifiers and…

Radial Engineering support FAQ

Common questions about manuals, registration, and support for this brand.

  • What is the warranty period for Radial Engineering products?

    Most Radial Engineering products come with a 3-year transferable limited warranty that covers defects in material and workmanship.

  • How do I eliminate hum and buzz in my audio signal?

    Many Radial products feature a 'Ground Lift' switch (often labeled LIFT) which disconnects the signal ground (pin-1 on XLR) to break ground loops that cause hum and buzz.

  • Where can I download user manuals for my Radial gear?

    User manuals, smart sheets, and guides are freely available for download on the official Radial Engineering website under the specific product pages.

  • How do I contact Radial for repairs?

    For service and repairs, you can visit the Service & Repair page on the Radial Engineering website or email support@radialeng.com.