800W Audio Amplifier with MOSFET

Here the schematic diagram of 800 watt audio power amplifier with MOSFET for final amplification.

800W Audio Amplifier with MOSFETcircuit diagram

This amplifier can be used for practically any application that requires high power, low noise, distortion and excellent sound. Examples would be Sub-woofer amp, FOH stage amplifier, One channel of a very high-powered surround sound amplifier etc.

For detail explanation about how this circuit works include the large schematic diagram, power supply schematic diagram and complete component listing, download this complete article

68 comments

  1. Sir, I want circuit diagrams book of AHUJA AMPLIFIERS. Please tell me where i can purchase it ? I live in KANPUR [U.P.]

  2. hello friends we make good quality of pcbs of AV800 and AV1000
    u just need to buy the transformer and connect to the amplifier board n use it cost of one pcb with all parts mounted at just Rs-2500/- with all genuine components for more details mail us on handmadeamplifiers@yahoo.com

  3. hi sarfraz nawaz u can buy AV800 or AV1000 pcbs at cheap cost at us
    for details mail us on handmadeamplifiers@yahoo.com

  4. DEAR SIR ,
    I WANTED TO PURCHASE ONLY THE PCB BOARD CAN YOU TELL ME WERE I CAN PURCHASE IT
    REGARDS
    SARFRAZ

  5. Hi! Good day!

    Is there any possibilities that I can also have the PCB Layout and Schematic Diagram of your 800W Audio Amplifier with MOSFET?

    juryrubi@gmail.com

  6. hello friends i am working on 800w amplifier since 2 months please any one help me in preset bias please friends please

  7. hi friends i have perfect pcb layout and more information about it for details
    shravanth.reddy@yahoo.com

  8. I like the 800w circuit,but I am not comfortable with the preset bias. Is their any way I can manurve with the circuit so that i can caome up with a auto bias generator.

  9. which mosfets i can use instead of IRF240 and IRF9240

    any one can mail me to
    shravanth.reddy@yahoo.com

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