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### Author Topic: Two amplifiers connected in series  (Read 8582 times)

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#### FrED

• Guest
##### Two amplifiers connected in series
« on: March 07, 2008, 06:49:40 AM »
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

• Hero Member
• Posts: 1849
##### Re: Two amplifiers connected in series
« Reply #1 on: March 07, 2008, 16:30:39 PM »
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

• Guest
##### Re: Two amplifiers connected in series
« Reply #2 on: March 07, 2008, 18:41:37 PM »

#### kam

• Hero Member
• Posts: 1849
##### Re: Two amplifiers connected in series
« Reply #3 on: March 09, 2008, 22:33:47 PM »
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

• Guest
##### Re: Two amplifiers connected in series
« Reply #4 on: March 11, 2008, 07:56:31 AM »
Imagine, 10 transistor connected in series, 1000 Watts! WOW

#### ScubaCap

• Guest
##### Re: Two amplifiers connected in series
« Reply #5 on: March 13, 2008, 00:20:06 AM »
Lol

Nice example man!

#### FrED

• Guest
##### Re: Two amplifiers connected in series
« Reply #6 on: March 22, 2008, 02:27:15 AM »
ok ok i got the point.