5. APPLICATION
In any case, the RSA 27 Realtime Analyzer is very useful tool.
Here, we introduce the connection of RSA 27 in a system simply, perhaps, it will help you a lot.
In this chapter, we will explain how to use and wire your RSA 27 Realtime Analyzer. In live application, the RSA 27 can
be as a frequency realtime spectrum analyzer or as a pink noise generator. For further details, please read following
content carefully.
8
AUX output
MAIN output
LINE input
LEVEL
TIP/PIN 2
RING/PIN 3
SLEEVE/PIN 1
＋
－
OUTPUT
INPUT
AC INPUT
95-120V
/210-240V
60-50Hz
∼
∼
∼
∼
Rated Power Consumption 21W
FUSE:
210-240V: T250mAL 250VAC
95-120V: T315mAL 250VAC
REPLACE FUSE WITH
CORRECT TYPE ONLY
Apparaten skall anslutas till
jordat uttag nar den ansluts
till ett natverk
PINK NOISE
AUX MIC
MAIN
A101
1
2
3
J.T.
110
-1
20
V
110
-1
20
V
110
-1
20
V
220-240V
220-240V
220-240V
USE ONLY WITH A 250V FUSE
EMPLOYER UNIQUEMENT AVEC
UN FUSIBLE DE 250V
USE ONLY WITH A 250V FUSE
EMPLOYER UNIQUEMENT AVEC
UN FUSIBLE DE 250V
USE ONLY WITH A 250V FUSE
EMPLOYER UNIQUEMENT AVEC
UN FUSIBLE DE 250V
EQ
AMP
MIXER
L
R
L
R
R
L
First, let's catch on the pink noise, which is defined as random noise that has been weighted with frequency to produce
constant noise power per octave, while one octave is added, the noise power is attenuated by 3dB. Because the ear
of human being reflects the logarithm effect to the sound, so the pink noise is heard as the same level for each octave.
Just because of this character, the pink noise is always used in the sound reinforcement system to adjust the equalizer.
Usually, it is difficult to grasp the change of frequency spectrum in stage monitor. In order to detect the response
problems in time,
▲
LTO RSA 27 provides easy and useful operation interface, which contains 27 bands LEDs display
that are used to read the program materials real time.
The RSA 27 is used to visually judge the character of pink noise signal received by the measurement facilities, you
may adjust the EQ to optimize the response of a sound system based on RSA 27 LEDs display. If there are feedback
occurs on some frequency band in system via observing the LEDs display, you can kill it through adjusting the level in
system in time.
Generally speaking, the frequency response of system is very flat, so you will look the LEDs display of RSA 27 like at
the same level. If some frequency band is out of the level, through the RSA 27 display you can adjust the EQ to get
the best result.
Next, let's introduce how to use the RSA27 in system.