Extron electronic MLS 304SA, MLS 304MA, MLS 406 Frequency Response Graph for the Loudness Feature

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	W
		.5
		0
		W
	+2	1
(dB)
	+0	W
Loudness		3
	-2	6	W
	-4		W
		14
	-6
	-8

20 50 100 200 500 1k 2k 5k 10k 20k

Frequency (Hz)

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.

PRELIMINARY

dBV	Voltage	dBu
-20 dBV	0.100 V	-17.8 dBu
-19 dBV	0.112 V	-16.8 dBu
-18 dBV	0.126 V	-15.8 dBu
-17 dBV	0.141 V	-14.8 dBu
-16 dBV	0.158 V	-13.8 dBu
-15 dBV	0.178 V	-12.8 dBu
-14 dBV	0.200 V	-11.8 dBu
-13 dBV	0.224 V	-10.8 dBu
-12 dBV	0.251 V	-9.8 dBu
-11 dBV	0.282 V	-8.8 dBu
-10 dBV	0.316 V	-7.8 dBu
-9 dBV	0.355 V	-6.8 dBu
-8 dBV	0.397 V	-5.8 dBu
-7 dBV	0.447 V	-4.8 dBu
-6 dBV	0.501 V	-3.8 dBu
-5 dBV	0.562 V	-2.8 dBu
-4 dBV	0.631 V	-1.8 dBu
-3 dBV	0.708 V	-0.8 dBu
-2 dBV	0.794 V	0.2 dBu
-1 dBV	0.891 V	1.2 dBu
0 dBV	1.000 V	2.2 dBu
1 dBV	1.122 V	3.2 dBu
2 dBV	1.259 V	4.2 dBu
3 dBV	1.413 V	5.2 dBu
4 dBV	1.585 V	6.2 dBu
5 dBV	1.778 V	7.2 dBu
6 dBV	1.995 V	8.2 dBu
7 dBV	2.24 V	9.2 dBu
8 dBV	2.51 V	10.2 dBu
9 dBV	2.82 V	11.2 dBu
10 dBV	3.16 V	12.2 dBu

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

MLS 304 Series, MLS 406 Series • Reference Material A-