User Manual

KH 120 | 9
Connecting audio signals
X
Always use good quality cables with the correct impedance and appropriate termination to
avoid signal drop outs and to achieve the maximum cable lengths shown below:
Signal (connector) Impedance Cable length Connection
Analog (RCA) low up to 10 m
(30')
via an adapter (RCA-XLR)
to the ANALOG INPUT socket
(XLR) 6 (see below)
Analog (XLR) low up to 100 m
(300’)
directly to the ANALOG INPUT
socket (XLR) 6 (see below)
AES3 (BNC) 75 Ω up to 100 m
(300')
directly to the AES3 INPUT
socket (BNC)C (see page 10)
AES3 (XLR) 110 Ω up to 100 m
(300')
via an impedance converter and
an adapter (XLR-BNC) to the
AES3 INPUT socket (BNC)C (see
page10)
S/P-DIF (RCA) 75 Ω up to 10 m
(30')
via an adapter (RCA-BNC) to the
AES3 INPUT socket (BNC)C (see
page10)
Connecting analog signals to the KH 120 A and the KH 120 D
X
Only connect analog signals to the KH 120 A.
X
Connect the left and right output of your analog audio source to the XLR input sockets6 of
the respective loudspeaker.
XLR XLR
Left signal
Right signal
Analog Source
X
Use an XLR adapter (not supplied) to connect unbalanced cables (e.g. RCA cables).
X
Use the following wiring if you want to make your own XLR adapter:
Wiring Pin Signal
Source (RCA)
Unbalanced RCA to balanced XLR connections
Loudspeaker (XLR-M)
1 Audio ground
2 Signal +
3 Signal -
If there is a humming sound from the loudspeaker, activate ground lift to disconnect
pin 1 of the ANALOG INPUT socket (XLR)6 from the loudspeaker’s chassis ground.
Connecting
XLR cables
EN