A:Answer Ajay, et al, My experience with ALL of the APC power handling equipment I've ever owned, tells me that this "strip" will certainly NOT add to any electric line interference that manifests itself in "noise" being output by a PA system (depending on, of course, the electrical power supply its plugged into and other environmental factors that might effect wireless transmissions (microphones, etc.) feeding into a PA amplifier).
ALL APC power strips are "wired" with low-resistance, large-gauge wires that provide far better power/signal flow than ANY generic ("el-cheap-o") power strip you might find at the local hardware store or grocery market. - I have one of these strips handling ALL the power for my whole home theater system (and another one for my 12 TB computer system), but it IS in a house that was built less than 20 years ago: The house wiring is ALL heavy-gauge copper, etc., etc., etc.