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Speaker Wires Under Baseboards
Hiding power cable and HDMI cable for wall-mounted TV
Crocheted Paracord Beer Cozy
You used unshielded speaker wire, which is not meant to be used in walls. You're only supposed to use CL2 rated in-wall speaker wire. It's a matter of both performance and safety, as it's a fire hazard to not use UL Listed cabling in walls.
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