Audiocrast 4X HiFi Speaker Spikes Stand Feet Pads 30x33mm Isolation Feet, Aluminum Speaker Shock Absorber for Subwoofer Amp Turntables DAC. Enhanced Sound Quality: The Tertullus 4 Pcs Ball Beads Speaker Isolation Feet Turntable Platform Pads provide optimal vibration isolation for your speakers, turntable, and other hi-fi components.