"INS-BS" was developed as an insulator that clarifies the mechanical earth of audio equipment and damps unnecessary vibrations from the equipment and its installation surface, without impairing the resonance and dynamism necessary for music. The reversible design allows you to use the carbon surface either up or down, allowing you to enjoy different tones. One side also has a 20mm diameter, 6mm deep recess that can be fitted with an INS-CF, dramatically improving the S/N ratio and adding a sense of high speed, allowing for a wide range of sound quality tuning options. In addition, a screw hole is provided on the center axis, allowing you to replace the insulator included with your device with the INS-BS and secure it with a screw. This allows for direct and firm contact between the device and the INS-BS, further improving sound quality. ■Specifications・Body material: High-purity brass (RoHS compliant) hard chromate plated - Bottom material: Carbon FRP・Dimensions: φ35.0 H15.0・Screw hole: φ5.0 (no thread grooves) Other: φ20mm, 4mm deep recess on one side (for mounting INS-CF)・Load capacity: 200kg/piece・Packaging quantity: 4 pieces per set