Neumann.Berlin KH 420, Руководство по эксплуатации

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KH 420 |
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Configuring and using the KH 420
Switching the KH 420 on/off
X
Set the on/off switch to:
• “I” to switch on the loudspeaker. The Neumann logo lights up, provided that it has not
been switched off by means of the DISPLAY BRIGHTNESS switch
0
(see page 22).
• “0” to switch off the loudspeaker. The Neumann logo goes off.
There is an approximate five second delay before sound can be heard from the loud-
speaker in order to avoid noises (pops) from preceding equipment switched on at the
same time. Conversely, switching off the loudspeaker immediately mutes the audio.
Adjusting the frequency response
When all its acoustical controls are set to 0 dB, the KH 420 loudspeaker is designed to have
a flat frequency response in anechoic conditions. When the loudspeaker is installed in your
monitoring environment, the response changes. The same loudspeaker installed in different
positions in the same room may require different acoustical control settings. In a symmetri-
cal installation, left/right pairs (front or back) will probably have the same acoustical control
settings.
X
Before using your loudspeaker system for the first time, calibrate the frequency response of
the loudspeakers in the room in order to obtain the desired response.
X
Repeat the above step if you change the physical conditions in your studio.
X
At your listening position, determine the frequency response of each loudspeaker.
X
Use the ACOUSTICAL CONTROLS switches
C
to adjust the frequency response.
Recommended frequency responses measured at the listening position:
• Studio applications: flat
• Film applications: X-curve shape (see ANSI/SMPTE 202M)
• Home applications: subjective evaluation
EN