4 Sets Speaker Insulation Foot Stand Shockproof Non-Slip Speaker Resonance Reducer for Turntable Amplifier Recorder CD DAC Feature: 1. Durable Material: Made of aluminum alloy and brass studs, these speaker isolating foot pads are characterized by high hardness, density, low harmonic vibration points and high attenuation. Anti-vibration and anti-slip rubber improves sound clarity, stereo imaging and bass characteristics. 2. Integrated design: All in one, anti-vibration speaker resonance reducer, making full use of the properties of brass and aluminum alloy, beneficial for vibration elimination. 3. Adjustable height: The height of the speaker isolating base mat can be adjusted (0 – 3,5 mm) to suit different types of speakers, amplifiers, CD or DVD players, etc. 4. Efficient functionality: By installing spikes, they separate players, amplifiers, or other audio components from vibrations, providing an effective solution to optimize real sound and reduce vibration in your stereo equipment. 5. Specifications: Item Type: Speaker Insulation Foot Pad Material: metal Application: For use with phono amplifier, CD DAC recorder Package List: 4 x Feet Spikes 4 x Covers