I have several of the Radio Shack ones and they do work when I get a temporary problem (then I change the wiring to solve the problem). One little interesting thing about the Radio Shack filter: it can actually introduce noise. You have to be careful which end is which, and keep the coil away from any other wires. If you do that, it's great.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.