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6
Four-Zone 70V (Unbridged) Wiring
The illustration below shows the wiring for a single channel of a DS70 being used in standard 70 volt mode. In this kind
of setup, the output level controls of the power amplifier can be used to control the volumes of each of the four zones.
For volume control of each of the speakers within a zone, an optional autotransformer can be used (see Appendix A on
page 9 of this manual for more information). Note that four speakers are being used for purposes of illustration only—any
number of speakers (up to the rated wattage of the power amplifier or DS70) can in fact be used in each zone. Note also
that the the remaining three channels of the DS70 can be used to provide the same or different output voltages.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
USE CLASS 2 WIRING
AVIS;
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE.
emc
EUR . USA . JPN
BRIDGE
OFF ON
CH4 R
CH3 R
CH4
CH3
4Ω 120W
MAX. LOAD
-++-
CH2 L
CH1 L
-++-
BRIDGE
OFF ON
SAMSON
SERIAL NUMBER
SERVO 4120
QUAD AMPLIFIER
SAMSON TECHNOLOGIES CORP., U.S.A.
AC
INLET
USA & CANADA 115V - 60Hz
EUROPE & UK 230V - 50Hz
650W MAX.
CAUTION:
DISCONNECT SUPPLY CORD
BEFORE CHANGING FUSE.
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE, REPLACE
ONLY WITH SAME TYPE OF FUSE.
ATTENTION:
DEBRANCHER AVANT DE
REMPLACER LE FUSIBLE.
UTILISERUN FUSIBLE DE
RECHANGE DE MEM TYPE.
USA & CANADA
T 8A/125V (115V)
EUROPE AND UK
T 6.3A/250V (230V)
FUSE
-+
+-
MONO 8Ω
-
+
CH2
CH1
4Ω 120W
MAX. LOAD
-+
+-
MONO 8Ω
-
+
COMCOM25.2V70V
CH1 OUTPUT
COMCOM25.2V
NC100V
70V
140V
CH2 OUTPUT
SAMSON
SAMSON TECHNOLOGIES CORP.
SPEAKER DISTRIBUTION SYSTEM
INPUT
+
–
–
+
CH3 CH4
INPUT
+
–
–
+
CH1 CH2
BRIDGE
BRIDGE
BRIDGE 70V
COMCOM25.2V70V
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
AVIS
RISQUE DE CHOC ELECTRONIQUE
NE PAS OUVRIR
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE
SERIAL NUMBER
DS70
SPEAKER DISTRIBUTION
BRIDGE 100V
CH3 OUTPUT
NC100V
140V
CH4 OUTPUT
BRIDGE 100V
COMCOM25.2V70V
BRIDGE 70V
+
-
+
-
+
-
+
-