Buy - Used Speakers

Gently (and evenly) push the woofer cone inward. It should move smoothly and silently. If you feel or hear a "scratching" or "crunching" sound, the voice coil is likely damaged or rubbing.

Platforms like Audiogon or US Audio Mart often have more enthusiast-owned gear with better descriptions. buy used speakers

Inspect the ring around the woofer (the surround). If it is made of foam, check for "foam rot"—cracking or crumbling. This is common in speakers over 15-20 years old but can often be repaired. Gently (and evenly) push the woofer cone inward