Radial Engineering J33 User Manual - page 8
True to the Music
7
Radial Engineering
J33 User Guide
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 fi 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 fi lter. This will usually tame low frequency PA system
feedback.
You are now ready to spin away! Have fun!
MP3 Player
Mixing Console
CD-R Recorder
Dashed line represents
turntable ground wire.