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KH 150 AES67 |
35
Cleaning and maintaining the loudspeaker
CAUTION
Damage to the product caused by liquids!
Liquids entering the product can cause a short-circuit in the electronics and damage or even destroy the product .
X
Keep all liquids away from the product!
X
Before cleaning, disconnect the product from the power supply .
X
Use a soft, dry, and lint-free cloth to clean the product .
X
Be careful not to accidentally adjust the controls when cleaning .
Troubleshooting
Problem
Cause
Solution
The Neumann logo is off, no
sound is heard from the loud-
speaker .
The loudspeaker’s main
internal fuse has blown .
Have the product checked by an authorized
Neumann service partner . There is no plug
fuse in the device .
The Neumann logo is off or not
clearly visible, but sound is heard
from the loudspeaker .
The Neumann logo is
switched off or dimmed .
Switch on the Neumann logo and switch off
the dimming (see page 10) .
The loudspeaker is buzzing .
Incorrect wiring in the
audio cable and/or poor
quality grounding in the
audio cable .
Check the cabling, especially if unbalanced
cabling has been used – see the cable wiring
diagram on page 7 . Use gold-plated
connectors .
Set the output level of the loudspeaker as
low as possible and set the output level of
the audio source as high as possible, without
causing it to clip .
Set the GROUND LIFT switch to the Lift
position .
The loudspeaker sounds very
“thin” in the bass . The low fre-
quency response is very low .
Incorrect wiring in the
audio cable or adapter .
Check the cabling, especially if unbalanced
cabling has been used – see the cable wiring
diagram on page 7 .
One loudspeaker is out of
phase with the other . This
results in cancellation in
the low frequency range .
Check the cabling, especially if unbalanced
cabling has been used – see the cable wiring
diagram on page 7 .
Check the settings in the signal source .
Standby is too sensitive or not
sensitive enough .
Incorrect standby settings,
or noise peaks / extraneous
noise in the source .
Check the standby settings and signal source
– see “Customizing standby behavior” on
page 17 .
For further information, please refer to the “Questions & Answers” section on the product page at www .neumann .
com .
EN