These audiophile grade speaker spike to speaker feet conversion pucks are designed to enhance the sound stage and mid-range modality of most modern (and a few vintage) speakers. Using 4D computer simulation the precise harmonic resonance pattern has been created to reduce third stage reflective dissonance. They are compatible with premium copper and silver speaker cables, but do not use them with cheap aluminum cables as this will result in muted over tones.

Or just use them to keep you speaker spikes from damaging your floor. They have a 1 inch (25mm) recess in the bottom for a furniture pad.