question A
=======
but, why MF (Musical Fidelity) can keep producing Class A amp (MF A1 integrated amp) now ?
MF is not UK brand anymore ?
UK law is still allow ?

question B
=======
so, few years later when it comes to law (illegal) , no factory/country will produce Class A amp ?

開冷氣都不環保,不如你唔好用啦!

P.S:本人是用純A類,真係熱到抽根,不過D聲同AB類比真係超班,有音樂感,音場闊,熱身半小時以上仲羅命,D高音,中音,低音,出哂嚟先係戲肉.我只追求靚聲,環保嗎!都係留畀環保份子算啦!又或等D類放大聲音有特破,再轉用D類吧!

Winter:

I use Class A Amp, switch off heater

Summer:

I use Digital Amp, switch on fan, off air conditionor

a. I have 300B , and class D amp both
b. I seldom use air con (less than 5 times a year)
c. i love class A amp, also, like class D amp.

just want to know class A amp will disappear
some time or not !

環保? No HiFi!

My dreaming 環保 (30W only) class A is:

＞ A類機 不環保
Yes ! No doubt !


＞question A
=======
＞but, why MF (Musical Fidelity) can keep producing Class A amp (MF A1 integrated amp) now ?

Just to fullfil the market. For people that have perception of Class A biased amplifiers were sounded better.

A1 was a little amplifier, it took must less power than a rice cooker, heat dryer, Air conditioner.

Particularly, MF doesn't sell / manufacture that many A1. It's a small market, and, it's very expensive !



＞MF is not UK brand anymore ?
No ! It's a UK company still.
But, low cost products were "made in China", mid priced products were "made in Taiwan". Only top series were still "made in British".



＞UK law is still allow ?
No need, and, why "law".
However, there are regulations may act in future. But, who care !



＞question B
=======
＞so, few years later when it comes to law (illegal) , no factory/country will produce Class A amp ?

Actually, the real demands of so called "Class A" biased amplifiers were very very very little, the Audiophile market were so small, sure there were people like Class A amps the better.

Nowadays, many Hi-end companies claimed their amplifers were Class A biased, however, they were not truely biased into class A at "FULL OUTPUT POWER", not Krell neither PassLabs anymore (unlike their initial products made 20-30 years ago). It's no real merits to bias an amplifer 100% into Class A at full output range.

Say, Musical Fidelity's best sounding amplifiers were not in full Class A biasing. And, Musical Fidelity makes "True Balanced" pre /main amplifiers, too.



- Only Class A (biasing) Amplifiers sounded superme ?

Of course not.



- Still waiting for an amplifier to warm-up 2-3 hours before sound good ?

Why ?
And, no more !



Cheers.

聽歌都講環保
唔係呀
就嚟屎都要忍
唔好傻啦

環保大佬，最好住進農村，點油燈，燒柴枝，屎尿又可澆田，最合何車。
城市生活，動輒環保，政治活動，非常擾民。

As a consumer, do your offspring a favor to demand for good sounding AND efficient amp, drive manufacturers to research for better technology and efficient use of energy.

As a matter of fact, new technology makes good class AB outperforms class A. Look at products from Boulder, FM, MBL, Goldmund, Chord, all class AB. Who dare to say they are not as good as class A?

Only lazy manufacturer still use old technology to make money. A1?!

講野都幾唔負責任.

A類機 不環保???
if u want 環保, don't listen music lor.

^O^小弟用部細火膽機,比A類機石 更不環保!!

明唔明乜係環保架..要環保不聽音樂? 歪理.

聽歌都講環保
唔係呀 ＜＜＜＜＜

有乜問題? 人人為娛樂就唔理環保, 全球暖化加快, 我地都玩唔倒幾耐.

all c-hings

you have you point, but you not understand what I mean. I like class A amp, but I support class D too.

my point is .....
- we cannot buy an air-con in many countries
already if it cannot reach the level/limit of energy saving.

- in other words, we cannot buy class A amp
in few years later ?
and... class A amp only for DIY ?

Before Europe bans class A, they should ban Ferrari first. :(

There is a much bigger impact on banning the use of non-RoHs components than just Class A or non Class A.
A lot of ClassAB amps are excellent sounding too. And I don't think 2.5W Class A 2A3 amp is not environmental friendly.
All amps will sound different 5 years from now than 5 years ago even they use the same circuitry and from the same manufacturer...The components are just different....

支持環保.

"A類機 不環保"
comparatively, YES! They have only 20%~35% efficiency.

I'm using old-small-amp with small speaker and usually listening within 5W sound level.
I can say I'm 支持環保. Of course I'm consumming resource from Earth but try my best to use less.