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Radial Engineering ProD2 - User Manual

Radial Engineering ProD2
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www.radialeng.com
Radial Engineering Ltd.
1845 Kingsway Ave., Port Coquitlam BC, V3C 1S9, Canada
Tel: 604-942-1001 • Fax: 604-942-1010 • email: info@radialeng.com
ProD2D2
Passive Stereo
Direct Box
ProDI
Passive
Direct Box
User Guide
®
True to the Music
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Radial Engineering ProD2 Specifications

General IconGeneral
BrandRadial Engineering
ModelProD2
CategoryRecording Equipment
LanguageEnglish

Summary

Welcome to Radial ProDI;ProD2

Understanding the Radial ProDI

Key Features of ProDI and ProD2

1;4 Input Jack

Instrument input for connecting to the direct box, used for signal input.

1;4 Thru-Put Jack

Parallel output for connecting the instrument signal to an amplifier.

Integrated -15 dB Pad

Reduces input signal to prevent distortion, offering -15dB attenuation.

Protective Bookend Design

Protective design covering switches and connectors for durability.

Balanced XLR Output

Balanced, low impedance mic-level output wired to AES standard.

Ground Lift Feature

Disconnects pin-1 at XLR output to reduce ground loops.

Anti-Slip Foam Pad

Isolates DI from amp chassis and prevents sliding on stages.

Robust Steel Enclosure

Rigid I-beam design prevents stress on PC board and solder joints.

Custom Radial Transformer

Custom-designed transformer for outstanding audio performance.

High-Quality PCB

Military-grade PCB with plated through-holes bolted to steel standoffs.

Connecting Your ProDI;ProD2

ProDI;ProD2 FAQs and Troubleshooting

Output Level Clarification

Explains why ProDI output is microphone level, not line level.

Phantom Power Immunity

Confirms ProDI ignores phantom power and protects connected devices.

DI vs. Direct Connection

Discusses the benefits of using a DI for noise reduction and impedance matching.

Passive vs. Active DI

Compares passive and active DIs, highlighting passive DI advantages for hum/buzz.

Piezo Pickup Use

Advises on using ProDI with active piezo pickups and suggests alternatives for passive.

Technical Specifications and Diagrams

Frequency Response

Specifies the audio frequency range handled by the ProDI/ProD2: 20Hz to 20kHz.

Harmonic Distortion

Details the low THD: 0.01% from 20Hz to 20kHz for clean audio.

Input Impedance

States the input impedance is 140K ohms at 1kHz, suitable for instruments.

Balanced Output

Defines output as 150 ohms, -60dB mic level, pin-2 hot for balanced connection.

Pad Attenuation

Indicates the input pad provides -15dB attenuation.

Radial Engineering Warranty Information

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