點解低 W 數 Amp 好力過高 W 數嘅 Amp?

smokeyduck

that pair of speaker (one of those cost only a few hundred and local made) was going/sound well at below 12 o'clock, once i turned it to 12 o'clock it was just too loud for it and it started to drift around.  i held it tight on the floor and turn even louder and it blew eventually.

my point is a relatively low output (45w per channel) can drive a speaker and even blow it without difficulty, is the output figure really that important?

ps. my power amp is a Naim NAP-140, bought in uk back in late 80's and has been serving me for more than 2 decades.

成成

我只知前級增益多數大過合併機份前級,所以好力好多
例如AUDIO NOTE M1前級對ARC SP9,同一部後級.ARC明顯好力一倍,M1無乜力水咁

Bomb_Dance

smokeyduck 發表於 2013-8-9 13:40
that pair of speaker (one of those cost only a few hundred and local made) was going/sound well at b ...

這結果只是代表三個可能性︰
一、你的Naim在音量控制過了12時位置會出直流。
二、那對土炮喇叭不能承受Naim在音量控制過了12時位置的功率。
三、Naim在音量控制過了12時位置後，超過了Naim的功率負荷，令Naim出現Clipping。一般來說，Clipping輸出功率約為標示擴音機功率的兩倍，也就是說Naim當時輸出90W來推那對喇叭。

smokeyduck

i am sorry that i surely do not know what "clipping" about.

but going over 12 o'olock was fine with my previous "Energy" speaker and is still fine with the current "Mission"(but it is a 10 years old shitty floorstander).

so, probably going "huge" figure is the way to look for for most people but not for me.  my only 45w per channel still going fine and strong and i seldom go over 1 o'clock, probably i am just too old for "loud"

smokeyduck

by the way, i used to be a "loud music" chaser, "Disco Robo" was my dream machine it out performed 777 by far

unfortunately a Disco Robo is now just too expensive and not easy to find.