i have an older set of siltechs not sure of the model but they are blue with red sleaves at one end...what i need to know is are the red sleaved ends input or output? help is appreciated
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2/16/11 at 9:26am
When connecting balanced line signals and inputs, it is sometimes necessary to disconnect the through-put of the shield. This is generally due to low voltage potentials on the grounds and neutrals experienced between AC line voltage sources. Not very frequently, but it does happen. This is the reason that all permanently installed audio/visual systems have separate earth electrical grounds from the building framework.
Usually when the devices are transformer coupled, this is not an issue. Differential balanced inputs are another concern altogether as they are extremely susceptible.