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Radial Engineering JDX 48 - User Manual

Radial Engineering JDX 48
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User Guide
JDX 48
Amplier Direct Box
CAUTION: Please read safety disclosure
statement on the inside cover before
connecting your Radial JDX 48.
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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Radial Engineering JDX 48 Specifications

General IconGeneral
Channels1
Input Impedance1 MΩ
Ground LiftYes
Polarity SwitchYes
Frequency Response20 Hz - 20 kHz
Signal to Noise Ratio>100 dB
Weight1.5 lbs
Input1/4" (6.35 mm) TRS
OutputsXLR, 1/4" Thru
Output Impedance600 Ω
EnclosureSteel

Summary

Caution Statement

Not a Load Box

Emphasizes that the JDX 48 is not a load box and requires a loudspeaker or load box for amplifier safety.

Turn Amplifier Off Before Connecting

Mandates turning the amplifier off before connecting or disconnecting the JDX 48 to prevent damage.

Prohibited Amplifier Outputs

Strictly prohibits using the JDX 48 with amplifiers having bridged or balanced speaker outputs due to shock risk.

Design Concept

JDX 48 vs. Standard Direct Box

Explains how the JDX 48 differs from standard DIs by tapping amplifier output for a unique sound.

Typical Applications

Replace Microphone Setup

Details using the JDX 48 to replace a microphone for capturing amp sound, eliminating variables.

Mixing with Microphone

Describes combining the JDX 48 signal with a microphone for richer guitar tones and effects.

Use with Radial Phazer

Explains how to use the JDX 48 with the Radial Phazer for time-aligning signals for fat sounds.

Feature Set

Signal Flow

Connections and Thru-put

Explains the FROM AMP input and TO SPEAKER thru-put for patching the JDX 48 between amp and speaker.

Signal Processing Blocks

Details the Transformer, Active Bandpass Filter, and Active Balanced Driver stages in the signal path.

Noise and Phase Controls

Describes the Ground Lift and 180° Polarity Reverse switches for noise reduction and phase alignment.

Making Connections

Using the JDX 48

Mixing with a Microphone

Details combining the JDX 48 signal with a microphone for richer textures and stereo effects.

Using With the Radial Phazer

Block Diagram and Specifications

JDX 48 Specifications

Lists technical specifications including audio circuit type, frequency response, input/output levels, and dimensions.

Three Year Transferable Limited Warranty

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