我自己diy的膽機，o的牛都唔係乜o野高價o野，質量都唔會太差，起震就一定係質量問題，你問十個人十個都會咁答你。

254mm

＞隻電源火牛唔係香港交流頻率的, 震唔出奇
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Why?

其實咩完因隻牛先會起震呢,有無高手可以解釋下?

I accepted this - all transformer will vibrate

But most of the transformer, you will never notice the vibration - This is very true.

For the reasons of vibration, maybe

1, Overloaded

2, Workmanship

168wa hing your case I will guess is the second quality of the transformer, so don’t trust the sales and request to test the second set!

When magnetic flux pass through the core (iron sheets), it will induce magnetic field.

Since the core got many some core (individual metal sheets), those metal sheets will repluse each other.

Since it is AC current, it will vibrate at 2 X input frequency of the AC input.

When the transformer is too small, but handle very big current, the magnetic flux density is high, then the vibration will be stronger. (i.e. stronger noise.)

In a good quality transformer, the user will never notice the vibration.

樓主係咪買咗"柯得碌"呢? 咁貴都有問題? 我以前用Kit One時d牛係樣衰同熱,都吾會震掛.何况你講緊十幾萬既機.

我有對"渣的士"300B 單聲道,d牛就真係幾好.

我而家得緊佢原廠回應,如果佢答我震係正常既,我一定唔會要同對呢個牌子會失望,還好我同個行一向有買開野幾年,我唔要佢都唔會為難我既

剛剛打佐來,佢話原廠話隻牛上唔緊,而家叫我上去試

好牛就咁放在機上, 唔收鑼絲, 都唔會震. 唔信可自行試下.

“剛剛打佐來,佢話原廠話隻牛上唔緊,而家叫我上去試”

Even I full loaded my Tx ( wound by myself long times ago) and not tightened still no hum and vibration.

So take care! I will insist to test the other set.

好牛就咁放在機上, 唔收鑼絲, 都唔會震. 唔信可自行試下. X 2

十幾萬既機..........

"渣的士"???

parker75兄
請問摸不震，
但耳朵離它5CM~10CM聽到有DEDE聲，
是不是也算震呢？還是有鏍絲鬆左？...THANKS

算震. 同鏍絲鬆唔鬆無關係.

一般靚牛用耳朵貼住牛蓋上聽, 衹有好輕微 "v" 聲. 無震!

唉,好失望重浪費佐我200$飛的去,震動係細佐,但都係有,我以表明我唔會要,佢同我講有小小震係正常,重話佢賣過出去其他機震過我呢部都有,真係好失望

沒第二部試咩？

kc兄...THANKS:(

佢話9月頭有第二部來開比我試,不過十幾萬機qc咁差,而家個心係感覺佢的質量唔係幾好

stephen

＞請問摸不震，
但耳朵離它5CM~10CM聽到有DEDE聲，
是不是也算震呢？還是有鏍絲鬆左？...THANKS
++++++++++++++++++++++++++++++++++++++++++++++++

If it is cheap cheap power amp (e.g. less than $2K), I will let it go. But I will never buy it again.

For a power amp ＞ $100k, it is totally un-acceptable.

好牛就咁放在機上, 唔收鑼絲, 都唔會震, 無聲.

鏍絲鬆左, it is the 鏍絲 to clamp the EI sheet together 鬆左, it will 有 DE DE 聲 or 震.

Not the 鏍絲 to fix the 牛牛在機上.

好牛就咁放在機上, 唔收鑼絲, 都唔會震, 無聲.