Instruction/ maintenance manual of the product DS70 Samson
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® O WNERS MANUAL SPEAKER DISTRIBUTION SYSTEM.
Intr oduction 3 DS70 Features 3 Guided T our 4 Modes of Operation 5 Wiring Diagrams 6 Four-Zone 70V (Unbridged) 6 Two-Zone 70V (Bridged) 7 Four-Zone 25.
Intr oduction / DS70 Featur es Congratulations on purchasing the Samson DS70 Speaker Distribution System! The DS70 provides four high-quality toroidal step-up transformers in a single chassis. Each transformer can accept a nominal-level signal from any standard power amplifier, and can then convert it to a 70 volt, 25.
Guided T our 1: Channel inputs (1 - 4) - Connect output signal from a power amplifier to these four sets of binding post input connectors, making sure to follow the polarity markings silk-screened above each connector.
About Distributed Sound A distributed sound system (sometimes known as a “ constant voltage ” system) allows a single power amplifier to drive multiple loudspeakers over a single high-impedance line.
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.
7 The illustration below shows the wiring for two channels of a DS70 being used in Bridged 70 volt mode. Since the two input channels are bridged, a signal of up to 240 watts (into 8 ohms) can be received from the power amplifier.
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 4 Ω 120W MAX. LOAD -++- CH2 L CH1 L -++- BRIDGE OFF ON SAMSON SERIAL NUMBER SERVO 4120 QUAD AMPLIFIER SAMSON TECHNOLOGIES CORP.
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.
Two-Zone 140V (Bridged) Wiring 10 The illustration below shows the wiring for a single channel of a DS70 being used in a non-standard 140 volt mode (which can be used with custom equipment where exceptionally long cable runs are required.
11 Note: The block diagram below shows the signal flow for a single channel of the DS70. Appendix A: Block Diagram Po w e r amplifier DS70 Speaker transf ormer Optional local s witcher and v olume con.
12 Specifications 1: Input Impedance 4 Ω (non-bridged modes) 8 Ω (bridged modes) 2 Ω (dual mode) 2: Maximum Power Each Input 120 Wrms (non-bridged modes) 240 Wrms (bridged and dual modes) 3: Output 70 V, 25.2 V (non-bridged), 100 V, 140 V (bridged) 4: Insertion Loss -0.
Produced by On The Right Wavelength for Samson Technologies Corp. Copyright 1998, Samson Technologies Corp. Printed January 1998 Samson Technologies Corp.
An important point after buying a device Samson DS70 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Samson DS70 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Samson DS70 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Samson DS70 you will learn all the available features of the product, as well as information on its operation. The information that you get Samson DS70 will certainly help you make a decision on the purchase.
If you already are a holder of Samson DS70, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Samson DS70.
However, one of the most important roles played by the user manual is to help in solving problems with Samson DS70. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Samson DS70 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
