轉載: 試聽Ayre KX-5/VX-5 前後級

auraheart

柒喜 發表於 2014-1-9 10:44
搶錢

搶錢 X2
The pre-amp costs a lot less to build than the power amp.  How in the world they sell them the same price?  搶錢!  Business tactics, I guess lol..

uncleting

內籠結構好别緻

lomei

柒喜 發表於 2014-1-9 11:59
昆虫不會咁笨走人去，電死都有知

會 5 會有 D 5 過電

柒喜

Peers123 發表於 2014-1-9 17:34
可否有試聽?

如有代理就實有

柒喜

auraheart 發表於 2014-1-9 17:37
搶錢 X2
The pre-amp costs a lot less to build than the power amp.  How in the world they sell them ...

好似酒店食餐咁食環境咪贵，佢賣牌子

柒喜

lomei 發表於 2014-1-9 20:12
會 5 會有 D 5 過電

百嚴四圍咬咪有電

henry1328

貢貴 留番直好野友排歎

dingdum

柒喜 發表於 2014-1-9 05:52
我說我話: 中意Ayre無污染、絕不修飾的聲音，以及極佳臨場感，中意佢既音量元件，但討厭佢既賣價，卻更愛KX ...

相信要大的空間才能體現其威力及音質喎

柒喜

dingdum 發表於 2014-1-9 22:30
相信要大的空間才能體現其威力及音質喎

大空間都要睇用乜喇叭

hkmessi123

回復 柒喜 #1 的帖子

一睇就知好嘢！但價錢貴。

gooseling

I like the FM Acoustics more !

7k7k

汰落內外刀幾正,有G會試聽吓至G係咪一分錢一分貨...

張家輝

auraheart 發表於 2014-1-9 16:57
熱過部電腦,
My computer's cpu using a heat sink (no fan) still not as hot as a 175 watt am ...

我以為部腦個火牛都成450 watt 添~

auraheart

dingdum 發表於 2014-1-9 22:30
相信要大的空間才能體現其威力及音質喎

音質 should be fine...威力? I doubt it..hehe..for home use no problem but it does not seem to build for long term running at max power.  I expect under extreme case, this amp will shut off in 15, maybe 30 minutes due to over heat.  Well build amps will last hours or even days under extreme conditions.

auraheart

張家輝 發表於 2014-1-10 03:20
我以為部腦個火牛都成450 watt 添~

450 watts switching power supply for computers is inexpensive to build, and 450 watts linear p/s for audio used is different story.  Computer deals with 3.3, 5, and 12V where amps needs a lot more voltage.
You see, the output rated wattage for this amp is 175 Watts, but it actually eats more...rest of the energy will become heat.  It is call efficiency..

張家輝

auraheart 發表於 2014-1-10 03:37
450 watts switching power supply for computers is inexpensive to build, and 450 watts linear p/s f ...

即係功率 ?

auraheart

張家輝 發表於 2014-1-10 03:40
即係功率 ?

How many watts it consumes and amp's rated out put are two different thing.  Well, if power consumption = actual out put, that is 100% efficiency.  No such thing so far. Every part in the system would cause energy lost.  Where does the energy go?...it becomes heat.

張家輝

auraheart 發表於 2014-1-10 03:49
How many watts it consumes and amp's rated out put are two different thing.  Well, if power consum ...

即係內部構造越多, 就越耗 energy, 變相亦會越熱 ?

auraheart

張家輝 發表於 2014-1-10 03:53
即係內部構造越多, 就越耗 energy, 變相亦會越熱 ?

Yes, also depends on how clever the design is..say class A amp 耗 most energy, but it sounds the best.  It is a give and take thing.  Smart designs are simple and good..

Efficiency (rule of thumb)
Class A amp about 25%
Class AB somewhere between Class A and B
Class B amp about 75%
Class C not used for audio..usually use in communications devices
Class D could be as high as 90%, but I wouldn't expect good sound quality,  not now anyway.

auraheart

lomei 發表於 2014-1-9 20:12
會 5 會有 D 5 過電

Stick your fingers in there.  You find out..
(just kidding)