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Sound System Interconnection

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Sound System. Interconnection. Cause and prevention of ground loops. Interfacing balanced and unbalanced. Proper pin connections and wiring ...

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Sound System InterconnectionPage 1Interconnection IntroductionThis note originally written in 1985 continues to be one of our most useful references. Its popularity stems from the continual and perpetual difficulty of hooking up audio equipment without suffering through all sorts of bizarre noises hums buzzes whistles etc. not to mention the extreme financial physical and psychological price. As technology progresses it is inevitable that electronic equipment and its wiring should be subject to constant improvement. Many things have improved in the audio industry since 1985 but unfortunately wiring isnt one of them. However finally the Audio Engineering Society (AES) has issued a standards document for interconnection of pro audio equipment. It is AES48 titled AES482005: AES standard on interconnections Grounding and EMC practices Shields of connectors in audio equipment containing active circuitry.Ranes policy is to accommodate rather than dictate. However this document contains suggestions for external wiring changes that should ideally only be implemented by trained technical personnel. Safety regulations require that all original grounding means provided from the factory be left intact for safe operation. No guarantee of responsibility for incidental or consequential damages can be provided. (In other words dont modify cables or try your own version of grounding unless you really understand exactly what type of output and input you have to connect.)Rane Technical StaffRaneNote 110 1985 1995 Rane CorporationSound SystemInterconnection Cause and prevention of ground loops Interfacing balanced and unbalanced Proper pin connections and wiring Chassis ground vs. signal ground Ground lift switchesRaneNoteSOUND SYSTEM INTERCONNECTIONPage 2Interconnection Ground LoopsAlmost all cases of noise can be traced directly to ground loops grounding or lack thereof. It is important to understand the mechanism that causes grounding noise in order to effectively elimina ...

Source: www.rane.com

 

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