Gently listen for "chirping" or distorted highs, which can indicate a blown voice coil or dried ferrofluid.
Ensure the center domes aren't pushed in; while often cosmetic, deep creases can affect performance. buy used speakers online
Brands like Klipsch and Polk often have official "Renewed" storefronts on major platforms . Gently listen for "chirping" or distorted highs, which