Klark Teknik DN370, Руководство оператора

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Figure 5 Figure 6 and show the DN370 response for both 2 dB and full scale boost and cut, note that the smooth combining of
the bands for small amounts of boost and cut is very similar to that of the Symmetrical-Q equaliser in its 'wide' mode, whilst as
more boost or cut is applied, the response becomes sharper, giving much more precise control of problem frequencies.
Figure 5 DN370 response ±2dB boost and cut
Figure 6 DN370 response full boost and cut
In addition to the graphic equaliser section, the DN370 also provides sweepable high-pass and low-pass filters and two
overlapping sweepable notch filters per channel.
The sweepable high- and low-pass filters can be used to enhance the
intelligibility of wedge monitors by cutting out extraneous low and high frequency noise, and therefore allowing higher SPLs to be
used. The two notch filters further enhance the unit's ability to precisely tune-out problem frequencies. The response of the
notch filters was selected after careful listening to allow feedback to be eliminated quickly, but at the same time to be unobtrusive
when in use.
The high-pass, low-pass and notch filter control pots all have push-on, push-off bypass switching, with an
illuminated ring around each pot to show when the filter is active. So for example, if there is particular frequency where a
performer's acoustic guitar causes feedback, one of the notch filters can be used to cut that frequency, and switched out when not
needed whilst still left in position for later in the set when the same instrument may be used again.
-15
+15
-10
-5
+0
+5
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d
B
u
300 4k 400 500 600 700 800 900 1k 2k 3k
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+15
-10
-5
+0
+5
+10
d
B
u
300 4k 400 500 600 700 800 900 1k 2k 3k
Hz
DN Operators Manual - 370 Page 16
The DN370 proportional-Q response