®
J33
™
User Guide
Radial Engineering Ltd.
True to the Music
7
Make the connections from the J33 to whichever piece of gear you would
like. The unbalanced -10dB outputs are commonly known as consumer
line-level outputs. These will drive inputs found on hi- equipment
and the unbalanced line-level inputs found on mixing consoles. The
balanced XLR outputs on the J33's rear panel are mic-level so that they
will match up with other direct boxes and microphones, thus enabling
the J33 to be used along with microphones in snake systems, mic
splitters and through console mic preamps.
You can use any or all the output connectors at once, enabling you to,
for instance, connect your turntable to the J33, the -10dB RCA line-
level outs to a DJ mixer and the balanced XLR outs to a PA system.
Depending on how the equipment is connected to the AC mains, there
can be a potential for ground loop hum when using both the balanced
and unbalanced outputs at the same time. If a ground loop hum
develops, a possible solution is to lift the ground at the PA mixer and
use the J33’s 15VDC external power supply.
Once your connections are made, turn on the sound system. Begin at
low volume to make sure the sound system is working properly, get
your favorite album and listen. The sound should be clear. If you hear
any hum or buzz, check the ground wire, as this is the usual culprit.
It should be rmly held by the J33’s ground lug. If you are driving
your system at high volume levels and begin to hear low frequency
resonance, try depressing the rumble lter. This will usually tame low
frequency PA system feedback.
You are now ready to spin away! Have fun!
Mixing Console
DJ Mixer
Dashed line represents
turntable ground wire.