Network Switches

@jnorris2005 - I agree with you...my only concession to the other side of this question that IF there is inadequate filtering in the streamer or receiver or whatever is connected to the home network, then noise carried on the Cat 5 or 6 cable or picked up from the environment by that cable...then that noise gets introduced into the end piece of equipment. In that scenario there is then a defect in the equipment that needs to be fixed. Surely the engineer that designed this equipment took noise transmission and filtering into account as part of the design. No additional isolation should be necessary. IF it is necessary then the equipment being affected is either defective or poorly designed and should be replaced.