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LEHLE GmbH · Germany · www.lehle.com · support@lehle.com
LEHLE P-SPLIT III AS A PASSIVE SUMMING BOX FOR STEREO SIGNALS
If you are using a complex stereo setup
but unfortunately there‘s only one amplifi-
er available, it‘s possible to use the LEHLE
P-SPLIT III as a passive summing box for a
stereo signal.
Even for summing and isolating line sig-
nals sent by CD-players / laptops, con-
nected to a mono monitor speaker with-
out producing a ground loop, the LEHLE
P-SPLIT III can be used.
Please note that you will get best results
if you are summing two signals coming
out of one device (such as a stereo signal)
since the impedance matches.
If you are passively summing mono sig-
nals out of two different devices, it can
cause an impedance mismatch with the
result that one signal is very low in volume
and presence.
HOW TO DO THIS
1. Connect the left side of the stereo sig-
nal to the input socket (1) of the LEHLE
P-SPLIT III.
2. Connect the right side of the stereo
signal to the output socket DIR (2). Here,
this socket is used as the second input.
3. Connect the ISO output (5) to the am-
plifier or monitor speaker.
4. Use the phase switch (3) to find out
which setting sounds better to you.
5. Use the ground lift switch (4) to deter-
mine which position eliminates the most
background noise.
6. There you go!
DEVICE CONNECTION
Input
Output
Left signal
Right signal
Output
Amplifier /
Monitor speaker
ISO
DIR
D I R
I S O
M A D E I N G E R M A N Y
P- S P L I T
