Dear Friend,

I need a powerful audio amplifier circuit diagram. The IC of the amp should be available all over the world like India. Can you have any information about it ?Tell me which ICs are very popular and easily available and powerful also !

Thank you,

Have a nice day !

 

What's this for?

Please provide more information.

__________________
I also post at the following sites:
http://www.stop-microsoft.org http://www.heated-debates.com
Screen name: Aloone_Jonez
And http://www.silicontronics.com, same screen name as here.

 

More questions than answers:

A. How powerful? What about voltage, bandwidth, etc?
B. IC, discrete components, solid-state, vacuum tube, etc??
C. Availability - is India the country of concern or do you really mean all countries?
D. By "very popular" do you mean used often by manufacturers alone, hobbyists.

__________________
stevez

 

http://www.national.com/appinfo/audio/

http://www.st.com/stonline/products/...amplifiers.htm

http://focus.ti.com/apps/docs/appcat...error_a_audio#

 

Why not go to an Indian website and ask there what amp ICs are available there?

__________________
Uncle $crooge

 

An LM3886 in bridged/parallel config would be the easiest high power solution with monolithic IC's.

 

Here it is my required specifications of audio amplifier :

Maximum Supply Voltage - 40volts
Maximum Output Power - 60watts
Maximum Output Current - 6amp
Bandwidth - 20hz-20khz
Gain - 50db
Load Resistance - 8ohms
Input Resistance - 50kohms
Popular - Hobbyist
Availability - India (More powerful than LA4440)
It should be IC

 

Your spec's don't go together.
60W RMS into 8 ohms is a voltage of 62V peak-to-peak. The amplifier would need to be two bridged amplifiers or it must have a supply of at least 68VDC.

Your little 40V supply will make an amplifier have about 34V peak-to-peak into 8 ohms which is only 18W RMS.

The LM3886 IC by National Semi uses a 70V supply to produce 60W into 8 ohms at 0.002% distortion at 1kHz.

__________________
Uncle $crooge

 

Maybe in India it's 60 watts IHF rating not RMS or continuous. Remember the old IHF rating? Indian Hi Fi

__________________
Don't make me reach through this monitor to slap you a good one!

 

I think the electrical power distribution system in India is terrible. When the amp plays a loud tone of 18W then all the lights in the neighbourhood dim.
If somebody in the neibourhood tuns on a heater or hair dryer then everybody's lights dim.

__________________
Uncle $crooge

 

The above LM IC is ideal. Also STK series by Sanyo will fulfill your requirements.

Yes
Yes & more than
Yes & below
Closer
Closer
Yes
Yes
Yes
Yes
Yes

__________________
Gayan

My Website
http://gsmicro.blogspot.com/

 

Does Sanyo still make old amplifier modules?

__________________
Uncle $crooge

 

No idea, but you can never find a replacement one when they fail! - there are so many different types, and productions runs seem small?.

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PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

Dear Audioguru,

Probably you have no idea of present condition of the electrical power distribution system in India. I invite you to come India and see how much you are wrong. As far as my knowledge is concern, I know my country more than you. If you think I speak too much ,please forgive me !

Thank you,

Have a nice day !

 

Oh, I think AudioGuru (and some of us) has a pretty good idea of Indian electrical codes and practices according to this report:

http://www.electro-tech-online.com/c...ety-first.html

__________________
Don't make me reach through this monitor to slap you a good one!