This is the circuit design of 1000W stereo audio amplifier. It is a very good design to assemble, easy to build from your board to the acquisition of components, the output transistors are the COMPLEMENTAR 2SC5200 and 2SA1943 relatively cheap and with very good result. In the power supply module we have 6 capacitors 4700uF/80v or more and one 50A bridge rectifier diode, this design can be in versions mono (500 Watts) or stereo (1000 Watts), if it is to mount it in the stereo version it is good to use a transformer of at least 8 Amperes and the voltage in both versions has to be 50v + 50v with central bypass, this transformer can be toroidal or ordinary.
Transistors
10 Transistors 2SC5200
10 Transistors 2SA1943
4 Transistors C2073
4 Transistors A940
Resistors
20 Resistors of 2.2 ohms 1/2W
20 Resistors of 0.33 ohms 5W
4 Resistors of 10 ohms 1W
4 Resistors of 100 ohms 1W
4 Resistors of 5.6K 1W
10 Resistors of 100 ohms 1/4W
4 Resistors of 330 ohms 1/4W
4 Resistors of 1K 1/4W
4 Resistors of 18K 1/4W
2 Resistors of 33K 1/4W
2 Resistors of 56K 1/4W
Capacitors
6 Capacitors of 4700uF/80V or more
6 Capacitors of 100uF/50V
2 Capacitors of 1uF/50V
2 Capacitors of 100pF ceramic
2 Capacitors of 15pF ceramic
4 Capacitors of 330pF ceramic
4 Capacitors of 680pF ceramic
4 Capacitors of 220 pF to ceramic
2 Capacitors of 0.1uF (104) / 250V polyester
5 Capacitors of 0.1uF (104) / 100V polyester
Miscellaneous
2 Integrated Circuits TL071 or UA741
4 15-volt to 1W zener diodes
4 Diodes 1N4007
1 Diode bridge of 35 amps or more. Best if it is 50 Amp
2 Small 2-pin GP connectors
2 large 3-pin Molex connectors
2 large 6-pin Molex connectors
1 50vx50v transformer, or up to 55x55V AC with current 15 amps minimum (stereo version)
2 Sockets for 8-pin integrated
4 sinks of 22 x 10 x 2.5 centimeters
24 mica insulation
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Please send me the circuit. Looks interesting.
hi the amplifier 1000W Stereo Audio Amplifier with Transistors 2SC5200 and 2SA1943" it is working fine
Hello......
I need a image of this board, after all parts solder. Please send a complete board image.
Read more at https://amplifiercircuit.net/1000-watt-audio-amplifier-transistors.html
https://www.youtube.com/watch?v=-KBsp0P7sws
hi you can send me .pcb layout component placement and schematic diagram for 2000watts amplifier
Hello, can I use jrc4558 in place of 741?
Yes you can but you should observe the pin configuration each of them. TL071 is single drive, jrc 4558 is dual driver.
Is this design working fine?\\
Can I replace 2SC5200 and 2SA1943 with
2SC3858 and 2SA1494 in order to get 1000w per channel. If yes, what would I have to change in this circuit. And what's the input sensitivity of this circuit, at what db level would I get maximum output. Thanks
Hello, can I use jrc4558 in place of
No because their is a lot difference between terminals configuration
Hello,, can i use 2n3773 alternate 2sc5200 in place ?????
This amplifier circuit is working fine.
my test results
1, voltage-60+60 dc
2, input voltage - 1.2 v rms sine wave
3, amplifier giving output- 294 watts rms@8 ohms load
4 , dc current 2.65 ampere.
Friends this is not a 1000 watts amplifier.this amp give only approximate 350 watts rms @ 8 ohms load.
change R3,R4 2W,D1,D2-1W
Note this is 1000W 'Stereo' Audio Amplifier @ 4 ohms load, stereo means that there 2 identical power amplifier board circuit ( 500W + 500 W). Sir can you make a test at 4 0hms load? Thank you
how can reduce humming?
What is no of 8 pole ic.