5000W Ultra Light – High Power Amplifier

Jonh Smith - Oregon, USA   jonhjonhsmith@hotmail.com     
Project non tested


This circuit is of an 2x 2,500W RMS stereo amplifier, super-light and without switching-mode power supply. The circuit just shows a channel, and the power supply that it assists to the two channels. The audio circuit should be duplicated, but the power supply assists to the two channels without problems.

A special care should be destined to the insulating transformer of the audio line, that should be of audio-high-quality, of the type used in microphone pre amps input line. The whole group (2 channels) of 5,000W RMS it should not weigh more than 32 lbs, already inside of an appropriate metallic box.


This circuit is exclusively for amateur use. It contains not-isolated parts of the electric AC net and it can be very dangerous. The connections for the speakers are not isolated of the domestic AC net and it requests extra care. This procedure seeks to substitute a conventional power supply with great weight and cost reduction, without necessarily to use a switching-mode power supply.

This procedure cannot be allowed in some countries for commercial-use. The author doesn’t have any responsibility for the form as that circuit it will be applied.

REV 17.07.99 – one channel shown only

25 Response on “5000W Ultra Light – High Power Amplifier

  1. This schematic is NOT fullfilling any safety requirements as there is no insulation between AC line and speaker output! When there is a failure in the transformer you can get an electric shock! To all who are interested in this schematic – please do yourself a favour and not build one of this devices – it against ALL safety regulations!!!

  2. Ya as I studied it I hope I can manage it to build it let me try I got a magnet which can drive that good machine

  3. Admittedly there is no isolation between the amp outputs and the line, but it would require a switching power supply with aq high frequency transformer to isolate. i8t is possible, but with his original goal or a working ultra high power amp that was overlooked. until you have that isolation be extremelyt careful with this system, EXTREMELY Carefull

  4. I’ve uploaded a higher resolution schematic on the download section above, where the parts are shown. We are sorry, no PCB is available for this project.

  5. I want know more about 10x power transistor . I just ready to make it but I think some thing going wrong can 4 power transistor make it 2500w power. Please replay me .

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.