Radial Engineering JDI Duplex Owner's manual

JDI Duplex
Brand
Radial Engineering
Model
JDI Duplex
Category
Musical Equipment
Type
Owner's manual

Radial Engineering JDI Duplex is a stereo passive direct box that allows musicians and audio engineers to connect their instruments or line-level sources to PA systems or recording consoles. With its Jensen audio transformers, the JDI Duplex delivers pristine sound quality and eliminates ground loops and hum. It features a range of connectivity options, including ¼-inch inputs and outputs, RCA inputs, a 3.5mm input, and XLR inputs and outputs. The JDI Duplex also offers a -15dB pad, 180° polarity reverse, ground lift, and mono summing capabilities, making it suitable for various applications.

Radial Engineering JDI Duplex is a stereo passive direct box that allows musicians and audio engineers to connect their instruments or line-level sources to PA systems or recording consoles. With its Jensen audio transformers, the JDI Duplex delivers pristine sound quality and eliminates ground loops and hum. It features a range of connectivity options, including ¼-inch inputs and outputs, RCA inputs, a 3.5mm input, and XLR inputs and outputs. The JDI Duplex also offers a -15dB pad, 180° polarity reverse, ground lift, and mono summing capabilities, making it suitable for various applications.

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True to the Music
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STEREO PASSIVE DIRECT BOX USER GUIDE
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
OVERVIEW
    


         


        



       
      
     
        
      






        
       

       




1
PASSIVE DI BASICS
        
      
     

       
       





         


     
      
       




     
  

    


     

        

Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
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FEATURES & FUNCTIONS
 

 

 

 

 

 
 
 

 













 
2
2
9
3
10 11 12 13
4 51 8
6 7
14 15
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
PA SYSTEM
TUNER
AMP
CHANNEL-2
BASS
CHANNEL-1
GUITAR
3
MAKING CONNECTIONS





The JDI DUPLEX quick start


        
         
    


QUICK START:
         
        

       
       



       




Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
4
Stereo or mono keyboard
        
       


   

PA SYSTEM
THRU
MONITOR
KEYS LEFTKEYS RIGHT
CHANNEL-1
KEYS LEFT
(MONO)
CHANNEL-1
KEYS RIGHT
Two stereo keyboards

 
     


   
        
     

PA SYSTEM
KEYS LEFTKEYS RIGHT
CHANNEL-1
KEYS LEFT
CHANNEL-2
KEYS RIGHT
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
5
Keyboard and drum machine
        

          

       

PA SYSTEM
CHANNEL-2
MONO SAMPLER
STEREO SAMPLER
CHANNEL-1
MONO KEYS
STEREO KEYS
Connecting consumer audio devices
      
  
         
       
  


Using the 3.5mm mini jack
         
       
       
        

3.5mm MINI
HEADPHONE OUT
PA SYSTEM
CHANNEL-2
RIGHT
CHANNEL-1
LEFT
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
6
Using the RCA jacks
  
         
        
      

       
        

Basic stereo connection


        



CHANNEL-1
LEFT
CHANNEL-2
RIGHT
DJ MIXER
RECORDER
Dual stereo devices
        
         



         


CHANNEL-1
LEFT SIGNALS
LEFT
LEFT
RIGHT
RIGHT
DJ MIXER
THRU
CHANNEL-2
RIGHT SIGNALS
LAPTOP COMPUTER
MONITOR
PA SYSTEM
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
7
Connecting balanced sources

        






       
        



        


CHANNEL-1
MIC-LEVELCHANNEL-2
MIC-LEVEL
BALANCED
LINE-LEVEL
PA SYSTEM
Using the -15dB pad
       
       

          
      




180° polarity reverse



  




         




   
       
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
8
         



Lifting the ground
  







Rack mounting the Duplex – Part #R800 9422 00

         


Optional kit lets you rackmount one or two Duplex direct boxes in 1RU.
Removable Switch caps
          
         

      


     

           

 

Push switch
caps off from
inside.
Radial Engineering Ltd. JDI • Duplex User Guide
True to the Music
®
9
Block Diagram
CH-1 XLR
Line In
¼"
¼"
RCA
RCA
XFORMER
POLARITY
180º
-15dB
PAD
GND
LIFT
CH-1 XLR
OUTPUT
CH-2 XLR
OUTPUT
MERGE
-20dB
PAD
XLR-IN
Switch
CH-2
INPUT
CH-2 XLR
Line In
¼"
¼"
RCA
RCA
XFORMER
POLARITY
180º
-15dB
PAD
MERGE
-20dB
PAD
XLR-IN
Switch
CH-2
THRU
CH-1
INPUT
CH-1
THRU
3.5mm MINI
Specications
 ......................................... 
 ...............................................
 ........................................... 
 ..............................................................................
 ................................................................
 ...............
 ................... 
.....
 ............................................
 ......................................
...................................................
 .......................................................... 
 .............................................. 
 ....................................................... 
 ............... 
 ............................................
 .................................................... 
 ............................................
 ...................
 ...................................
 ................................................................................. 
 ......................
 .................................................................................. 
 ........
 ........................................................... 
 ...........................................................
 ..............
........................................................
www.radialeng.com
Radial Engineering Ltd.




              
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   
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            
            

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Radial Engineering JDI Duplex Owner's manual

JDI Duplex
Brand
Radial Engineering
Model
JDI Duplex
Category
Musical Equipment
Type
Owner's manual

Radial Engineering JDI Duplex is a stereo passive direct box that allows musicians and audio engineers to connect their instruments or line-level sources to PA systems or recording consoles. With its Jensen audio transformers, the JDI Duplex delivers pristine sound quality and eliminates ground loops and hum. It features a range of connectivity options, including ¼-inch inputs and outputs, RCA inputs, a 3.5mm input, and XLR inputs and outputs. The JDI Duplex also offers a -15dB pad, 180° polarity reverse, ground lift, and mono summing capabilities, making it suitable for various applications.

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