Two amplifiers connected in series

[FrED]

This is a question that came up to me when i was studing some things for amplifiers.

I read that if you connect two transistor amplifiers in series, the total power you get is the multiplication of these two. For example, if you have a transistor that ampifies 10 times and another transistor that amplifies another 10 times, connecting them together gives you an amplification of 100!

Is it so easy to have amplification power?

[kam]

Yes actually you are right. Amplification is multiplied. But if you connect an allready amplified signal to an improper transistor, all you will get is a very loud noise.

There are limitations in transistor amplificaion gain and input. These limitations unfortunately makes a HiFi amplifier so hard to make.

[FrED]

And what about OP-Amps?

[kam]

Rules are rules and laws are laws. Otherwise, why do you think people give a shitload of money for 200-300 or 400watts Hi-Fi amps?

[Andre]

Imagine, 10 transistor connected in series, 1000 Watts! WOW

[ScubaCap]

Lol 

Nice example man!

[FrED]

ok ok i got the point.