光纖USB線.

fatman

進階會員

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21^# 跳轉到 »

發表於 2020-7-30 14:15 | 只看該作者

玩過地盒未? 就咁插入去DIGITAL端子會變聲. 比如用緊USB, 同軸駁地盒, 同LOGICAL DATA無關, 但會變聲. 呢 ...
uraki 發表於 2020-7-29 15:23

其實地盒個原理係掂？望過裡面都係喲水晶或其他野

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pallee

中級會員

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22^#

發表於 2020-7-30 14:36 | 只看該作者

回覆 21# fatman

Almost the most deceiving product in HiFi.

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fatman

進階會員

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23^#

發表於 2020-7-30 18:29 | 只看該作者

回覆 fatman

Almost the most deceiving product in HiFi.
pallee 發表於 2020-7-30 14:36

睇落去好似高科技野！！

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HAKAIDER

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24^#

發表於 2020-7-30 19:05 | 只看該作者

本帖最後由 HAKAIDER 於 2020-7-30 19:08 編輯

回覆 fatman

Almost the most deceiving product in HiFi.
pallee 發表於 2020-7-30 14:36

又唔可以話係欺騙嘅................

只係有人不停強調 "你屋企條電唔靚" 應運而生嘅産品吧了....................

其實只要屋企條電係有確實接上地線入電表箱

音響器材行獨立一條線, 或者唔好一條線連上雪櫃 / 風扇 / 電視之類多noise 嘅電器

基本上係唔需要用咩接地盒散走接地d noise

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pallee

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25^#

發表於 2020-7-30 19:59 | 只看該作者

回覆 24# HAKAIDER

Yes, static charge brings noise. The most effective/convenient way to leak static charge is connecting the equipment enclosure to ground pin/water pipe with a copper wire.

Ground box is a pure cosmetic (whatever materials inside).

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pallee

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26^#

發表於 2020-7-30 20:47 | 只看該作者

本帖最後由 pallee 於 2020-7-30 20:58 編輯

回覆 24# HAKAIDER

音響器材行獨立一條線
yes, it works better

或者唔好一條線連上雪櫃 / 風扇 / 電視之類多noise 嘅電器
you may mix up ground line and neutral line. Other appliances pollute the neutral line, not ground line. A power filter can help solving a bit. But it is very hard to remove such pollution completely

基本上係唔需要用咩接地盒散走接地
yes, connect the equipment enclosure to ground line directly. If it is inconvenient (e. g. in some old houses, not all sockets have ground line installed), connect to the water pipe

Ground line comes from a very big copper plate under a building. It is the zero volt reference. It is regarded noise free.

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uraki