The Three Best Options to Decouple Your Subwoofer | AV Gadgets
SVS Subwoofer Isolation feet compared to standard feet. Looked promising, but made little to no difference in rattling on mantle/walls/etc. : r/hometheater
SVS SoundPath Subwoofer Isolation System | Subwoofer, Sound isolation, Hifi
Professional Speaker Feet Shock Isolation Stand Subwoofer Pads Decoder Feet 4Pcs | eBay
The 4 Best High-Performance Subwoofers of 2022 | Reviews by Wirecutter