IMG STAGE LINE STA-553D Instruction Manual Download Page 6

6

English

PROT

ON

CLIP

SIG

POWER

PROT

CLIP

SIG

PROT

CLIP

SIG

L-CH

 

R-CH

 

SUB

0

10

STA-553D 

3-CH DIGITAL PA AMPLIFIER

600W 

0

10

0

10

  1 

2  3  4  5 6

50

Hz

250

120

170

230

70

50

Hz

250

120

170

230

70

50

Hz

250

120

170

230

70

SUB

R-CH

L-CH

CROSSOVER

FREQUENCY

L-CH

R-CH

SUB

OUTPUT

SUB

R-CH

L-CH

INPUT

SUB

R-CH

L-CH

MIN.  

LOAD  

4 Ω

3-CH

2-CH

INPUT

MODE

FUSE

230 V~/

50 Hz

 7 

10 

11 

12 

13

• 

Never pull the mains cable for disconnect-
ing the mains plug from the socket, always 
seize the plug .

• 

For cleaning only use a dry, soft cloth; never 
use water or chemicals . 

• 

No guarantee claims for the unit and no li-
ability for any resulting personal damage or 
material damage will be accepted if the unit 
is used for other purposes than originally 
intended, if it is not correctly connected 
or operated, or if it is not repaired in an 
expert way .

If the unit is to be put out of oper-
ation definitively, take it to a local 
recycling plant for a disposal which 
is not harmful to the environment .

4  Installation into a Rack

The amplifier is designed for installation into a 
rack (482 mm /19”); 1 rack space (44 .45 mm) 
is required . To prevent the rack from becom-
ing top-heavy, insert the amplifier into the 
lower section of the rack . The front plate is 
not sufficient for fixing the amplifier safely; 
additionally use lateral rails or a bottom plate 
to secure the amplifier .

To ensure sufficient cooling, air must be 

able to flow freely through all air vents of the 
amplifier . The hot air given off by the amplifier 
must be dissipated from the rack; otherwise, 
heat will accumulate in the rack which may not 
only damage the amplifier but also other units 
in the rack . In case of insufficient heat dissi-
pation, install a ventilation unit into the rack .

3-Channel PA Amplifier  

with Crossover Network

These instructions are intended for users with-
out specific technical knowledge . Please read 
these instructions carefully prior to operating 
the unit and keep them for later reference .

1  Operating Elements and 

Connections

POWER switch

Power indicator ON

Volume controls, one each for the left 
and right channels and for the subwoofer 
channel

LED PROT, one each for each of the three 
channels, will light up when the protection 
circuit is activated and for a few seconds 
after the amplifier has been switched on

Signal indicators SIG (depending on the 
setting of the volume control), one each 
for each of the three channels

Overload LEDs CLIP, one each for each of 
the three channels

Plug-in screw terminals (removable), one 
each for each of the three channels, to 
connect audio sources with line level, e . g . 
mixer
The connections are balanced . When 
connecting audio sources with unbalan-
ced output signal, additionally connect the 
ground connection “G” to “−” .

Controls for adjusting the crossover fre-
quency of the high pass filter, one each 
for the left and right channels

Control for adjusting the crossover fre-
quency of the low pass filter for the sub-
woofer output

10 

Switch INPUT MODE
disengaged:   3 input channels
engaged:  

 2 input channels; subwoo-
fer signal from the signals 
L-CH and R-CH 

11 

Plug-in screw terminals (removable), one 
each for each of the three channels, for 
connecting the speakers; for parallel con-
nection of two speakers, all terminals are 
available twice
Please also refer to chapter 5 .2 .

12 

Support for the mains fuse 

 

Always replace a blown fuse by one of 
the same type .

13 

Mains jack for connection to a socket 
(230 V~/ 50 Hz) via the mains cable sup-
plied

2  Applications

This 3-channel amplifier is designed for PA 
applications at events, e . g . performances 
on stage . It provides three adjustable filters 
that serve as crossover network for the two 
high-frequency/mid-frequency outputs L-CH 
and R-CH and the low-frequency output SUB . 
The signal for the subwoofer can be obtained 
from the stereo input signal or supplied sep-
arately . 

Designed as a class D amplifier and fea-

turing a switch-mode power supply, the 
amplifier is both compact and light . The am-
plifier is protected against short-circuit and 
overheating .

3  Safety Notes 

The unit corresponds to all relevant directives 
of the EU and is therefore marked with   .

WARNING

The unit uses dangerous 
mains voltage . Leave servicing 
to skilled personnel and do 
not insert anything into the 
air vents; inexpert handling 
may result in electric shock .

• 

The unit is suitable for indoor use only . Pro-
tect it against dripping water and splash 
water, high air humidity and heat (admis-
sible ambient temperature range 0 – 40 °C) .

• 

Do not place any vessels filled with liquid 
on the unit, e . g . a drinking glass .

• 

The heat produced inside the unit must 
be dissipated by air circulation; therefore, 
never cover the air vents of the housing .

• 

Do not operate the unit and immediately 
disconnect the mains plug from the socket

1 . if the unit or the mains cable is visibly 

damaged,

2 . if a defect might have occurred after the 

unit was dropped or suffered a similar 
accident,

3 . if malfunctions occur .

In any case the unit must be repaired by 
skilled personnel .

English
English Page

Summary of Contents for STA-553D

Page 1: ...GSANLEITUNG INSTRUCTION MANUAL MODE D EMPLOI ISTRUZIONI PER L USO GEBRUIKSAANWIJZING MANUAL DE INSTRUCCIONES INSTRUKCJA OBS UGI SIKKERHEDSOPLYSNINGER S KERHETSF RESKRIFTER TURVALLISUUDESTA 3 Kanal PA...

Page 2: ......

Page 3: ...R SPECIALISTS ELECTRONICS FOR SPECIALISTS ELECTRONICS FOR SPECIALISTS 3 Deutsch Seite 4 English Page 6 Fran ais Page 8 Italiano Pagina 10 Nederlands Pagina 12 Espa ol P gina 14 Polski Strona 16 Dansk...

Page 4: ...an le leuchtet bei aktiver Schutzschal tung und kurz nach dem Einschalten 5 Signalanzeige SIG abh ngig von der Ein stellung des Lautst rkereglers f r jeden der drei Kan le 6 bersteuerungsanzeige CLIP...

Page 5: ...ng Tipp Um Schaltger usche zu vermeiden den End verst rker in einer Audioanlage immer als letztes Ger t einschalten und als erstes Ger t ausschalten 1 Vor dem ersten Einschalten die drei Laut st rkere...

Page 6: ...ree channels 6 Overload LEDs CLIP one each for each of the three channels 7 Plug in screw terminals removable one each for each of the three channels to connect audio sources with line level e g mixer...

Page 7: ...he three volume controls 3 to zero to make sure that the initial volume will not be too high 2 Use the POWER switch 1 to switch the amplifier on and off The power LED ON 2 will light up when the ampli...

Page 8: ...lle si le circuit de protection est activ et bri vement apr s l allumage 5 LED SIG t moin de signal fonction du r glage de volume pour chacun des trois canaux 6 LED CLIP t moin de surcharge pour cha c...

Page 9: ...z ro pour viter au d but un volume trop lev 2 Pour allumer et teindre l amplificateur utilisez l interrupteur POWER 1 Lorsque l appareil est allum le t moin de fonc tionnement ON 2 brille 3 R glez le...

Page 10: ...e destro e per il canale subwoofer 4 LED PROT protection per ognuno dei tre canali si accende con il circuito di protezio ne attivo e brevemente dopo l accensione 5 Spie SIG dei segnali dipendono dal...

Page 11: ...volume 3 sullo zero per escludere un volume troppo forte quando si accende l amplificatore 2 Per accendere e spegnere l amplificatore azionare l interruttore di rete POWER 1 Con l apparecchio acceso...

Page 12: ...cuit en kort na het inschakelen 5 Signaalled SIG afhankelijk van de instelling van de volumeregelaar voor elk van de drie kanalen 6 Oversturingsled CLIP voor elk van de drie kanalen 7 Steekschroefkle...

Page 13: ...ordat u de eerste keer inschakelt plaatst u de drie volumeregelaars 3 helemaal terug op nul Zo vermijdt u een te hoog volume bij het inschakelen 2 Met de POWER schakelaar 1 schakelt u de versterker aa...

Page 14: ...ndos despu s de que se haya conectado el amplificador 5 Indicadores de se al SIG dependiendo del ajuste del control de volumen uno para cada uno de los tres canales 6 LEDs de sobrecarga CLIP uno para...

Page 15: ...e los tres controles de vo lumen 3 en cero para asegurarse de que el volumen inicial no sea demasiado alto 2 Utilice el interruptor POWER 1 para co nectar y desconectar el amplificador Se iluminar el...

Page 16: ...lewego i prawego kana u oraz kana u subwoofera 4 Diody PROT dla ka dego kana u zapala j si w przypadku zadzia ania obwod w zabezpieczaj cych oraz na kilka sekund po w czeniu wzmacniacza 5 Diodowe wsk...

Page 17: ...ka idealny balans mi dzy sygna em z kana w rednio wysoko tonowych oraz kana u niskotonowego regulatory L CH R CH dla lewego prawe go kana u rednio wysokotonowego oraz regulator SUB dla kana u niskoton...

Page 18: ...en avyttring som inte r skadligt f r milj n Alle rettigheder til denne brugsvejledning tilh rer MONACOR INTERNATIONAL GmbH Co KG Ingen dele af denne vejledning m reproduceres under ingen omst ndighede...

Page 19: ...aa vaurion 3 laitteessa esiintyy toimintah iri it Kaikissa n iss tapauksissa laite tulee toi mittaa valtuutettuun huoltoliikkeeseen l koskaan irrota virtajohtoa pistorasias ta johdosta vet m ll K yt p...

Page 20: ...MONACOR INTERNATIONAL GmbH Co KG Zum Falsch 36 28307 Bremen Germany Copyright by MONACOR INTERNATIONAL All rights reserved A 1708 99 01 10 2015...

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