Neumann.Berlin KH 420, Operating Manual

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18
| KH 420
ACOUSTICAL CONTROLS
switches
C
Function Possible settings
Bass Compensates for acoustical
loading in the low frequency
range due to nearby large solid
boundaries (e.g. walls). 0, −2.5, −5, −7.5 dB
Mid Compensates for a “harshness” in
the sound quality experienced in
some installations. The source of
this is usually comb filtering due
to desktop and/or ceiling reflec-
tions. 0, −1.5, −3, −4.5 dB
Treble Compensates for insufficient or
excessive high-frequency
damping in the room. +1, 0, −1, −2 dB
Parametric EQ Compensates for low and low-mid
frequency anomalies.
Desktop loading typically causes
a wide bump 2-6 dB high between
100 and 300 Hz.
Reflections from nearby bounda-
ries (walls, floor, ceiling) cause
constructive and destructive
interference.
Strong room resonances are
audible and should be reduced
with the parametric EQ. Gain: +4 to −12 dB
Freq: Off,
25 to 80,
50 to 160,
100 to 320 Hz
Q: 1 to 8
PARAMETRIC EQUALIZER
GAIN [dB] Q
TREBLE MID BASS
ACOUSTICAL CONTROLS [dB]
25-80
50-160
100-320
OFF
OUTPUT LEVEL INPUT GAIN
for 0 dBu
114
94
100
108
-12
-5
-2
0
+1
+2
+4 1
1.5
2
2.5
3
4
8 1
2
3
4
5
6
7
FREQUENCY FREQUENCY RANGE [Hz]
Position
25
32
40
45
52
65
80
25-80
50
64
80
90
105
130
160
50-160
100
130
160
180
210
260
320
100-320
1
2
3
4
5
6
7
-12 -4
-14
-10 -6
-2
[dB SPL at 1 m
for 0 dBu / -18 dB FS]
-1.0
-2.0
+1.0
-1.5
-3.0
-4.5
-2.5
-7.5
-5.0
0
0 0
Max. input level
24 dBu (*18 dBu for
analog delayed)
-8
EN