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Back emf在喇叭的两端产生一个电压, 驱动器的内阻,加上线材的阻抗,就是这个电压的负载.% o9 p8 |. `6 k% B$ u9 f0 M3 M
给你个资料你 ...
P! \+ b7 F# n, W9 n! _& H0 iDarthModder 发表于 2009-12-30 13:30
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L, F) h, r4 H- g% z1 K* o- _ 只好再重复一遍,线材不是人为故意的话,它的阻抗随频率变化幅度相对音箱功放是可以忽略的,而影响音质的是什么?固定的阻抗只会影响输出功率而已。. j! R W( }9 g4 [5 Q: d
Damping factor varies with frequency. As you might suspect, damping factor is most important at low fre-
7 \$ f5 {8 c8 B$ U# F/ Rquencies, say 10 Hz to 400 Hz. The chart on the next page shows typical damping factor vs. frequency of
1 v( I7 |# _& P# I, Y3 {+ d. Ka Crown CTs 600/1200 power amplifier. It's well over 3000 from 10 Hz to 1 kHz.
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2 Y3 ~1 i+ Z6 p. n2 R$ Z5 Y* j你给我的资料,这资料里敢说线材的阻抗变化“It's well over 3000 from 10 Hz to 1 kHz.
; G9 h. F% r5 m& ?& W2 {5 k”吗?
: q3 f6 F+ C. m5 W4 x* O `哪家线材厂敢在广告里给出产品的幅频特性曲线的? |
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