Acoustic Revive Input Terminal Short Pins ※ Special damping sheets and quartz resonators are not included. Unused analog and digital input terminals on audio equipment act as antennas, becoming sources of noise. Noise entering through these unused terminals destabilizes the equipment's circuit operation, leading to significant sound quality degradation. By attaching short pins or short plugs to the unused input terminals, noise intrusion is prevented, stabilizing the equipment's operation and dramatically improving quality, such as improved S/N ratio and sound image localization, and a reduction in distortion and muddiness. Furthermore, the superior damping structure of brass + 2017S aerospace-grade aluminum alloy + special damping material also provides reinforcement and damping effects for the equipment's terminal board, further enhancing sound quality. There is no unique character or extraneous sound generation like other short pins or protective caps.