USING THE JS•3
As with all Radial products, using the JS•3 is simple and straight ahead. Make
sure the sound system is turned off and all levels are set to zero before making
audio connections. This will avoid any pops in the sound system that could
cause damage to speakers.
Connect a microphone or line-level source to the MICROPHONE INPUT on
the JS•3. Connect the DIRECT-1 THRU output to the console that supplies
phantom power and then the ISOLATED-1 and ISOLATED-2 outputs to your
monitor console and recording systems. Both isolated outputs are identical
and electrically separate from each other. If you encounter noise, simply de-
press the ground lift switches.
If you are using the JS•3 with a line-level device such as a keyboard, CD
player or line mixer, depress the -30dB input pad. This will reduce the level
going into the transformer and eliminate transformer saturation .
Start by turning up your sound system slowly to test connections before driving
at full volume. You are now ready to go!
J-RAK
The optional J-RAK is a high density rackshelf for Radial DI’s and splitters.
It’s a 2RU rack chassis that allows up to 8 Radial devices in one neat 19”
package. The DI’s can be mounted with either the input side or output side
facing the front. Ideal for studio or touring. Constructed of 14 gauge steel with
a baked enamel fi nish.
J-CLAMP
The optional J-CLAMP can mount a single Radial
device to virtually any surface. Perfect for hiding
away inside racks, on podiums or under tables.
Constructed of 14 gauge steel with a baked
enamel fi nish.
JS•3 BLOCK DIAGRAM
DIRECT-1 output con-
nects to main console. This
console supplies phantom
power back to the mic.
ISOLATED-1 output
connects to second console.
ISOLATED-2 output
connects to a recording
device.
3-Way Microphone Splitting
WELCOME
Congratulations on your purchase of the Radial JS•3 mic splitter. This simple
yet extremely handy device will likely fi nd its way into all types of applications
such as splitting mic signals and distributing signals throughout your sound
system.
The Radial JS•3 is equipped with the world’s fi nest Jensen bridging trans-
former to ensure the audio signal is transferred and distributed without dis-
tortion and is built using the fi nest materials to ensure years of trouble-free
performance.
We have purposely written this manual to be short, as most users will likely be
familiar with the JS•3’s applications. We do suggest that you take a moment
to read through this document to familiarize yourself with the features that are
built in. For more detailed information, please visit the Radial website. This
is also where we post questions and answers that come from users after the
product is released. If you do not fi nd an answer, we invite you to send us an
email at [email protected] and we will do our best to answer your query in
a prompt and professional manner.
The Radial JS•3 is a wonderful device that will surely provide you with years
of problem-solving connectivity. Enjoy!
INTRODUCTION
Upon inspection, you will notice the Radial JS•3 is equipped with four XLR
connectors: the MIC INPUT connector; the DIRECT-1 THRU; the ISOLATED-
1 OUTPUT with ground lift switch and the ISOLATED-2 OUTPUT with ground
lift switch.
Normally, the source microphone connects to the MICROPHONE INPUT and
the DIRECT-1 THRU connects to the mixing console that supplies phantom
power back to the microphone. If the source is a line-level device such as a
CD player, the input pad should be engaged to ensure the signal does not
saturate the transformer, causing distortion.
Note that the JS•3 will always
output a mic-level signal.
The JS•3’s isolated outputs will then feed a tape recorder, broadcast truck
or other PA system. The advantage of using the transformer-isolated output
is that it creates a magnetic bridge between the source and the destination,
thus eliminating any direct electrical current from passing. This eliminates
problems such as ground loops, which can cause buzz and hum in a sound
system. A ground lift switch is provided to disconnect the ground path between
the input and output to further suppress noise.
The JS•3 is completely passive. This means that it does not require a power
supply of any kind. The magic lies in the quality of the transformer we use.
Jensen transformers are famous for their exceptional signal handling and low
distortion. The JS•3 is equipped with a Jensen JT-MBD mic-bridging trans-
former that features a laminated nickel core and Faraday shield for optimum
signal transfer. You will fi nd the JS•3 to be transparent and very effi cient, mak-
ing it the perfect choice in professional installations.
JS•3 User Guide
Radial Engineering
JS•3 User Guide
Radial Engineering
JS•3 User Guide
Radial Engineering
