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樓主 |
發表於 2021-12-9 10:21:20
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"DS Audio designed and manufactures our ST-50 stylus cleaner for numerous good reasons. Before developing the ST-50, many people used a liquid-type cleaning brush with resulting problems such as compromising stylus adhesive and oxidation of metal parts. There were instances of customers damaging the stylus/cantilever using a small brush for the cleaning or impacting the cartridge suspension by brushing incorrectly.
This is why we developed the ST-50 pad-type stylus cleaner. It is mechanically safer and there is no chemical fluid that may damage the cartridge. The shape of the pad and its low profile allows you to cue down the stylus gently on the pad with no cantilever contact.
We specifically chose a lab grade of urethane gel that is ether based. The two basic formulations of urethane, ester and ether, have some important differences. Water attacks ester-based urethane, causing a significant reduction in physical properties. Ether urethanes exhibit far superior hydrolytic stability (water not reacting with another chemical), especially in humid environments. Ether-based materials also resist fungus growth better than ester-based materials."
And our Norway distributor took photos by the microscope and confirm that ST-50 material does not move to the cantilever.(Thank you Olav-san!)
Please see the below photos.
You can see that there is no urethane gel remaining the needle.
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