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STEREO PASSIVE DIRECT BOX USER GUIDE
TaBLE oF ConTEnTs
PagE
overview and DI basics .................................................................................................................. 1
Features and functions ................................................................................................................... 2
Making connections and quick start ............................................................................................... 3
stereo and mono keyboard ............................................................................................................ 4
Using the 3.5mm input.................................................................................................................... 5
Using the RCa inputs ..................................................................................................................... 6
Balanced audio source ................................................................................................................... 7
Using the PaD and 180° polarity .................................................................................................... 7
Using the ground lift........................................................................................................................ 8
Rackmounting................................................................................................................................. 8
Removing the switch caps .............................................................................................................. 8
Block diagram and specifications ................................................................................................... 9
Warranty ......................................................................................................................... Back cover
Thank you for purchasing the Radial JDI Duplex - arguably the world's finest passive stereo direct
box. The Duplex combines an incredibly accurate audio signal path with tons of connectivity and a
rugged construction that will provide years of dependable use. This latest version also adds a rack
mount option that enables one or two Duplexes to be mounted in a single rack space.
as with all Radial products, a lot of effort has gone into providing maximum flexibility with an easy
to use feature set. Before you start making connections, please take a few minutes to familiarize
yourself with the many functions that have been included. If you have a question after you have
read the user guide please visit the Duplex FaQ page on our web site. If you still can not find what
you are looking for, feel free to send us an email at info@radialeng.com and we will do our very
best to reply to you in short order.
now get ready to enjoy the smooth natural sound of the world's finest passive stereo direct box.
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