P=V x I
功率等如電流乘電壓，咁例如 100W 機，可以係 10V x 10A = 100W，亦可以係 5V x 20A = 100W。
近 ...
Wilmer威馬 發表於 2012-2-8 18:14 http://www.post76.com/discuss/images/common/back.gif
Damping Factor 幾多為之大，幾多為之細呢?
回復 40# Wilmer威馬
謝謝各位ching解釋,小的受教了{:6_162:}
Damping Factor 幾多為之大，幾多為之細呢?
Lester 發表於 2012-2-8 18:22 http://www.post76.com/discuss/images/common/back.gif
其實幾百已算高
回復 43# Wilmer威馬
100w class D 係吾係多數输比100wclass A呢？只計力水
class D 好似都好damp下wor
回復Wilmer威馬
100w class D 係吾係多數输比100wclass A呢？只計力水
class D 好似都好damp下w ...
Lester 發表於 2012-2-8 18:48 http://www.post76.com/discuss/images/common/back.gif
输硬，一来 class d 其实虚标、二来 damp 过头冇尾音
回復 45# Wilmer威馬
Damp過頭又吾得...{:6_187:}
回復Wilmer威馬
Damp過頭又吾得...
Lester 發表於 2012-2-8 18:53 http://www.post76.com/discuss/images/common/back.gif
最典型 Damp 過頭 o既聲就係 disco
Over Damping 會冇哂啲尾聲! 尤其是低頻.
回復 47# Wilmer威馬
咁係吾係夾Elac 就吾好咁damp, 夾肥佬b&w 就damp 多d咁呢？
"有 d 喇叭唔食電流，例如 3/5a，所以老燒會知道，用部舊 naim 可以推爆 3/5a，但用部大 Krell 可以推到一 pat 野，就係因為舊 naim 係電壓放大為主"
Thanks a lot for Wilmer's explanation. It really makes me understand the puzzles haunting me over years.
Might I know how I can know whether a pair of speakers are sensitive to 電壓 or 電流 as am still looking for an amp to match my speakers?
About damping factor, is there any norm that tells it is good enough, say 150, 200. Those class D amps, like W4S power amps, which have over 2000 damping factor should be too much while some tube amps which have only 50 might look insufficient. Without a chance to really listening an amp, which kinds of specification information can tell more about the power and 控制力?
