Two-Zone 100V (Bridged) Wiring
The illustration below shows the wiring for a single channel of a DS70 being used in 100 volt mode. Because each transformer within the DS70 can deliver up to 70 volts, so to get a 100 volt output, two of the transformers have to be bridged (i.e., connected in series). Since the two input channels are bridged, a signal of up to 240 watts (into 8 ohms) can be received from the power amplifier. In this kind of setup, the output level controls of the power amplifier can be used to control the volumes of each of the two zones. For volume control of each of the speakers within a zone, optional autotransformers 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 two channels of the DS70 can be used to provide the same or different output voltages.
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RISK DO NOT OPEN | DS70 | + | – INPUT + | – | ||
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CAUTION |
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OF ELECTRIC SHOCK |
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| SPEAKER DISTRIBUTION |
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| BRIDGE 70V |
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70V 25.2V COM COM | 70V | 25.2V | COM COM |
| BRIDGE |
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| SAMSON | ||
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| SAMSON TECHNOLOGIES CORP. | ||
| 140V | 100V | NC | SPEAKER DISTRIBUTION SYSTEM | ||
CH1 OUTPUT |
| CH2 OUTPUT |
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| BRIDGE 100V |
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+ | – INPUT | + | – |
CH3 |
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| BRIDGE |
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SERIAL NUMBER |
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| AVIS |
| RISQUE DE CHOC ELECTRONIQUE | ||
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| NE PAS OUVRIR | |
| DO NOT EXPOSE THIS EQUIPMENT | ||
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| BRIDGE 70V |
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70V 25.2V COM COM | 70V | 25.2V | COM COM |
| 140V | 100V | NC |
CH3 OUTPUT |
| CH4 OUTPUT | |
| BRIDGE 100V |
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CAUTION | ! |
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RISK OF ELECTRIC SHOCK |
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DO NOT OPEN |
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USE CLASS 2 WIRING |
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emc |
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| CH4 | CH3 | AC USA & CANADA 115V - 60Hz | CH2 | 4Ω 120W | CH1 | ||||
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| MONO 8Ω |
| 650W MAX. |
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EUR . USA . JPN |
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| MONO 8Ω |
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AVIS; |
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| DISCONNECT SUPPLY CORD |
| DEBRANCHER AVANT DE |
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RISQUE DE CHOC ELECTRIQUE |
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| BEFORE CHANGING FUSE. |
| REMPLACER LE FUSIBLE. |
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NE PAS OUVRIR | BRIDGE |
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| FOR CONTINUED PROTECTION |
| UTILISERUN FUSIBLE DE |
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DO NOT EXPOSE THIS EQUIPMENT |
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| AGAINST RISK OF FIRE, REPLACE |
| RECHANGE DE MEM TYPE. |
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TO RAIN OR MOISTURE. |
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| ONLY WITH SAME TYPE OF FUSE. | USA & CANADA |
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| OFF | ON |
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| FUSE | T 8A/125V (115V) |
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| CH4 R |
| CH3 R | EUROPE AND UK |
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| T 6.3A/250V (230V) |
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SERVO 4120
QUAD AMPLIFIER
SERIAL NUMBER
SAMSON
SAMSON TECHNOLOGIES CORP., U.S.A.
BRIDGE
OFF ON
9