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This product is an audio quality-improving seal for optical discs, utilizing an organic polymer hybrid damping material with the highest level of vibration-absorption performance. Simply apply the 0.3-mm thick ring-shaped seal to the center of a CD, DVD, or other optical disc to absorb the minute levels of unnecessary vibration generated during playback with amazing efficiency, and greatly attenuate the physical and electrical noise caused by this vibration. This makes the sonority, spread, thickness, and subtlety of the sound extremely true to life, dramatically improving the ability to reproduce the original sound. Additionally, the center (remaining) portion of the ring-shaped seal can be used to remove remaining adhesive, or to tune the device.

The number of DS-25 rings has been increased from 11 to 18, thus reducing the unit cost.
Not only that, but further advancements have enhanced the sound quality and enabled a higher level of fidelity.


Be careful not to cut yourself with the plastic spatula when removing it from the case or using it to peel off or apply the seal.

When removing the seal from a disc, be sure to completely remove any remaining adhesive. If adhesive from the seal remains on the disc, then the audio device could become damaged the next time the disc is played.

When removing adhesive from a disc, you can use the remaining center portion from the seal ring. Press the adhesive portion of the seal to the disc several times; this will cleanly remove the adhesive.

Peel off the seal by using the plastic spatula.

Put the seal on the center of the case with the adhesive face of the seal upturned.

Put the disc on the case with the label said downward ,and firmly press the seal.

Product specifications

Package contents 18 ring-shaped vibration-damping seals (thickness: 0.3 mm)
Plastic spatula: 1



Audio Rack

Speaker Stands

Audio Board


Tuning Materials

for Analog Player