Using The Ground Lift - Radial Engineering LX-2 User Manual

USING THE GROUND LIfT

When connecting two or more powered devices, you may encounter hum and buzz caused by ground loops. The isolated out-
put on the LX-2 has a Jensen transformer in the signal path, which blocks DC voltage and breaks the ground loop. However, the
direct output is connected straight through to the input of the LX-2, and you may need to engage the ground lift on this output
to disconnect pin-1 on the connector and help remove buzz and hum on this output. A ground lift switch is also present on the
isolated output to provide further abatement of ground loop noise.
SOURCE
The image above shows an audio source and a destination with a common electrical ground. As the audio also has a ground, these
combine to create a ground loop. The transformer and ground lift work together to eliminate the ground loop and potential noise.
Radial Engineering Ltd.
EMI & RADIO NOISE
60Hz
Hum
GROUND LOOP HUM
ELECTRICAL GROUND PATH
TRANSFORMER TRANSFORMER
BREAKS THE LOOP
5
RECEIVE
LX-2™ Line Splitter User Guide