KH 150 AES67 |
13
GROUND LIFT
The GROUND LIFT switch internally separates pin 1 of the XLR input socket from the electron-
ics chassis ground .
If there is humming or buzzing noise coming from the loudspeaker, first search for the cause
of the noise:
X
Disconnect all input cables from the loudspeaker .
If the noise goes away, it is probably coming from the audio source or source cabling . It might
be possible to eliminate the noise by disconnecting the ground from the input signals (activat-
ing ground lift) .
To activate the ground lift:
X
Reconnect the signal cables and set the GROUND LIFT switch to
Lift
.
For safety reasons, the electronics chassis ground is always connected to the ground
contact of the power supply . Never disconnect the ground contact of the power cable
from ground .
Resetting the loudspeaker settings
You can use the
MA 1 – Automatic Monitor Alignment
software to configure the loudspeaker
beyond what is available on the backplate .
To reset these internal loudspeaker parameters to the factory settings:
X
Set the INPUT SELECT switch to ANALOG, S/PDIF L or S/PDIF R .
X
Switch on the loudspeaker .
X
While the logo is flashing during the boot up phase, move the CONTROL switch up and down
repeatedly . Continue until the logo turns solid white for a few seconds .
The logo begins quickly flashing red for a few seconds before turning white again .
Firmware update
Firmware updates are done via the
MA 1 – Automatic Monitor Alignment
software . When you
open the software, it scans the network for loudspeakers and checks if the firmware is up to
date . If a firmware update is required, you will be notified . Follow the instructions shown on
screen .
It takes approximately 10 seconds per loudspeaker to update the loudspeaker firmware .
The AES67 firmware update may take up to 30 minutes .
*INPUT SELECT
GROUND LIFT
CONTROL
0
ANALOG
S/PDIF L
S/PDIF R
AES67
-3
*INPUT GAIN
[dB]
SETTINGS
Lift
Ground
Local
Network
EN
