7
SY-A4120
The following is a typical constant voltage system setup for a small restaurant using the HPA Preamplifier power
amplifier along with an S zone feeding several audio zones with paging and music. The first two channels are con-
nected to four wall-mounted speakers in each of the Dining Rooms with their transformers set to a 25 watt tap. The
third channel powers two speakers in the outside Bar area with their transformers set to 50 watt. The fourth channel
powers small speakers in the lobby with a 12 watt tap.
System setup
System setup
CH 4
SPEAKER OUTPUT
PUBLIC ADDRESS POWER AMPLIFIER
SY-A4120
-12
0
dB
ADJUST
LINK
CH 2
INPUT
OFF
ON
HPF
400Hz
-12
0
dB
ADJUST
LINK
CH 3
INPUT
OFF
ON
HPF
400Hz
-12
0
dB
ADJUST
LINK
CH 1
INPUT
OFF
ON
HPF
400Hz
DESIGNED AND ENGINEERED IN KOREA
WARNING
DO NOT EXPOSE
THIS EQUIPMENT
TO RAIN OR
MOISTURE
CAUTION
FOR CONTINUED
PROTECTION AGAINST
RISK OF FIRE, REPLACE
ONLY SAME TYPE FUSE
AVIS
RISQUE DE CHOC
ELECTRONIQUE NE
PAS OUVRIR
ATTENTION
UTILISER UN FUSIBLE
DE RECHANGE MEME
TYPE
CH 3
CO
M
CH 2
CH 1
-12
0
dB
ADJUST
LINK
CH 4
INPUT
OFF
ON
HPF
400Hz
~ AC INPUT
100~240V 50/60Hz, 118W
CO
M
100 V
(83
)
22 V
(4 )
70 V
(41
)
CO
M
100 V
(83 )
22 V
(4 )
70 V
(41 )
CO
M
100 V
(83 )
22 V
(4 )
70 V
(41 )
CO
M
100 V
(83 )
22 V
(4 )
70 V
(41 )
4
3
2
1
502-SYA4120B-2967_02.indd 7
2011/5/16 11:36:47
Summary of Contents for SY-A4120
Page 2: ...WARNING 502 SYA4120B 2967_02 indd 2 2011 5 16 11 36 33...
Page 12: ...10 SY A4120 Block Diagram Block Diagram 502 SYA4120B 2967_02 indd 10 2011 5 16 11 36 49...
Page 13: ...11 SY A4120 502 SYA4120B 2967_02 indd 11 2011 5 16 11 36 49...
Page 14: ...12 SY A4120 502 SYA4120B 2967_02 indd 12 2011 5 16 11 36 49...
Page 15: ...13 SY A4120 502 SYA4120B 2967_02 indd 13 2011 5 16 11 36 49...
Page 16: ...502 SYA4120B 2967_02 indd 14 2011 5 16 11 36 49...
