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Frequency Response Graph for the Loudness Feature
The following graph represents the frequency response of these MLS models when
the loudness feature has been turned on.
+10
+8
+6
+4
+2
+0
-2
-4
-6
-8
20
Audio Reference Levels
The specifications for the audio source devices may be listed in one of several units.
Or you may wish to use a sine wave generator such as the Extron VTG 300 as a
source for setting up audio inputs before the input devices are available. The tables
below are a convenient reference for equivalences between dBV, voltage, and dBu.
dBV
Voltage
-20 dBV
0.100 V
-19 dBV
0.112 V
-18 dBV
0.126 V
-17 dBV
0.141 V
-16 dBV
0.158 V
-15 dBV
0.178 V
-14 dBV
0.200 V
-13 dBV
0.224 V
-12 dBV
0.251 V
-11 dBV
0.282 V
-10 dBV
0.316 V
-9 dBV
0.355 V
-8 dBV
0.397 V
-7 dBV
0.447 V
-6 dBV
0.501 V
-5 dBV
0.562 V
-4 dBV
0.631 V
-3 dBV
0.708 V
-2 dBV
0.794 V
-1 dBV
0.891 V
0 dBV
1.000 V
1 dBV
1.122 V
2 dBV
1.259 V
3 dBV
1.413 V
4 dBV
1.585 V
5 dBV
1.778 V
6 dBV
1.995 V
7 dBV
8 dBV
9 dBV
10 dBV
50
100
200
dBu
-17.8 dBu
-16.8 dBu
-15.8 dBu
-14.8 dBu
-13.8 dBu
-12.8 dBu
-11.8 dBu
-10.8 dBu
-9.8 dBu
-8.8 dBu
-7.8 dBu
-6.8 dBu
-5.8 dBu
-4.8 dBu
-3.8 dBu
-2.8 dBu
-1.8 dBu
-0.8 dBu
0.2 dBu
1.2 dBu
2.2 dBu
3.2 dBu
4.2 dBu
5.2 dBu
6.2 dBu
7.2 dBu
8.2 dBu
2.24 V
9.2 dBu
2.51 V
10.2 dBu
2.82 V
11.2 dBu
3.16 V
12.2 dBu
MLS 304 Series, MLS 406 Series • Reference Material
500
1k
2k
Frequency (Hz)
dBu
Voltage
dBV
-20 dBu
0.078 V
-22.2 dBV
-19 dBu
0.087 V
-21.2 dBV
-18 dBu
0.098 V
-20.2 dBV
-17 dBu
0.109 V
-19.2 dBV
-16 dBu
0.123 V
-18.2 dBV
-15 dBu
0.138 V
-17.2 dBV
-14 dBu
0.155 V
-16.2 dBV
-13 dBu
0.174 V
-15.2 dBV
-12 dBu
0.195 V
-14.2 dBV
-11 dBu
0.218 V
-13.2 dBV
-10 dBu
0.245 V
-12.2 dBV
-9 dBu
0.275 V
-11.2 dBV
-8 dBu
0.309 V
-10.2 dBV
-7 dBu
0.346 V
-9.2 dBV
-6 dBu
0.388 V
-8.2 dBV
-5 dBu
0.436 V
-7.2 dBV
-4 dBu
0.489 V
-6.2 dBV
-3 dBu
0.549 V
-5.2 dBV
-2 dBu
0.616 V
-4.2 dBV
-1 dBu
0.691 V
-3.2 dBV
0 dBu
0.775 V
-2.2 dBV
1 dBu
0.870 V
-1.2 dBV
2 dBu
0.976 V
-0.2 dBV
3 dBu
1.095 V
0.8 dBV
4 dBu
1.228 V
1.8 dBV
5 dBu
1.378 V
2.8 dBV
6 dBu
1.546 V
3.8 dBV
7 dBu
1.735 V
4.8 dBV
8 dBu
1.974 V
5.8 dBV
9 dBu
2.184 V
6.8 dBV
10 dBu
2.451 V
7.8 dBV
5k
10k
20k
A-
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