Operation Manual

Connection and getting started 16
9. 10. 11.
Selector switches for several sound adaptations: The AM 180 comes
with 3 selector switches for adapting the sound to special room condi-
tions or to personal gusto. For examples, please also refer to page 6.
The switch ACOUSTIC SPACE adjusts a so called shelving filter for the
bass range. By means of this filter room resonances, caused by e.g.
close-to-the-wall locations, can be equalized.
The switch HF TRIM is also a shelving filter which can be used or em-
phasizing (especially for extremely damped rooms) or damping the high
frequency range.
The switch LF CUTOFF controls the cutoff frequency of a highpass filter. All frequencies below the selected fre-
quency will be damped. This might be useful if the speaker has to play very loud (e.g. as small PA) without the
need of playing deep bass. So, there is more energy left for reproducing the mid-/high-range.
12.
Mains fuse: In the lower part of the mains inlet there is a drawer which contains the mains
fuse. This drawer is already equipped with a fuse which fits to the mains voltage of your local
energy provider. If you would like to connect the speaker to a different mains voltage, the
voltage selector switch (13) has to be switched to the appropriate mains voltage and the
mains fuse has possibly to be adapted. This has to be carried out by a technician.
13.
Voltage selector switch: By means of this switch the appropriate mains voltage can be se-
lected. The default value is already corresponding to the mains voltage which is provided by
your local energy provider and should not be changed.
14.
Mains inlet: In the upper part of the mains inlet the female plug of the power cord (“E”, see
chapter 12) will be plugged-in. The mains plug then should be plugged into an available
mains receptacle.
15.
Mains switch: If all necessary connections are done, finally the mains switch can be switched
on. A blue LED at the front of the speaker will signalize that the speaker is working properly.
Note: If you want to disconnect the AM 180 all-phase from the mains, you have to pull out the
mains plug.