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發表於 2015-7-22 17:31:36
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exactly....If you plug a large power class A power amp, more voltage drop will occur....
Example:
Assume you have a pure Class A 100W. The normal idle power consumption will be around 400W per channel (i.e. 800W for both channel). If your supply voltage is 240V, that imply it takes 3.3A as constantly. If you additional cable (from socket 1 to 2) has resistant of 0.1ohm, it will create 0.33V voltage drop between socket 1 to socket 2. However, this is not the end of question. If you have a great power amp which able to drive low impedance speaker without dropping power and your speaker sometime may drop to 2ohm, the voltage drop will be 3 times higher...i.e. over 1V......For HiFi, such change of voltage I think will be noticeable.... |
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。我的拖板的駁法係好似附圖一樣，係拖板引拖板，因為一籃子因素，諗黎諗去都無辦法用牆插開2個拖板出黎
，想請問以下兩個駁法的安全性是否有分別？因為我以為兩者都係同一個牆蘇掣食晒D電，所以安全性一樣。請ching們解答
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