關於電問題

請問各位 c-hing 圖中的標記分别，對電阻值有冇差别，thanks!

一樣

R=Ohm

我分音器高音用两個電阻:

正極数值越小越高音，
奇怪的係負去正的用 <2 Ohm>唔正常阻力好大， <4.7 RJ>就好D， <6.8 RJ>就ok正常聲高音多了，唔知係唔係線路問題，因以前有一對1高2低嘅落地箱，正極同負去正都係数值越小越高音。

You need to check 2 issue.

1. The resistor is parallel or series in your network?

2. Some of the this kind resistor is inductor base, it also affect the cross over design.

KK

You need to check 2 issue.

1. The resistor is parallel or series in your network?

2. Some of the t ...
kk_ho 發表於 2010-5-22 11:21

    確實有影響，以前高低音各用一個電容，高低頻都ok就係冇中音，宜家係高音加多一個電容，人聲空氣感好左好多。

你用水泥電阻效果好似會無咁好，如果自己改最好用金屬皮膜電阻，因為電感極低。

你用水泥電阻效果好似會無咁好，如果自己改最好用金屬皮膜電阻，因為電感極低。 ...
balex 發表於 2010-6-1 18:18

水泥電阻平平哋係用離測試，

不過金屬膜電阻試過唔多，c-hing 有乜好介紹？