This circuit is a stereo amplifier 2X 2,500W RMS, super light and without switch mode power supply. Circle shows only one channel, nutrition helps to channels. Must repeat the sound department, but helps power to the two channels without problems.
Needs to be addressed and special care of the transformer isolation of the audio line, which are of high quality audio is to be, of the type in which the microphone input line pre-amplifiers. Complete set (2 channels) of 5,000W RMS shall not weigh more than 32 pounds, all within the square metal fitting.
Warning
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.
Schematic
