2x 2,500W RMS stereo amplifier

Description: This circuit is of a 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.

The described circuit is a 2x 2,500W RMS stereo amplifier designed for amateur audio applications. It is notable for its lightweight construction and the absence of a traditional switching-mode power supply, which is typically heavier and more complex. The schematic primarily depicts one channel of the amplifier, with the understanding that the audio circuit must be duplicated for full stereo functionality. The power supply is designed to support both channels simultaneously, ensuring efficient operation.

Critical to the design is the use of a high-quality insulating transformer for the audio line, which is essential for maintaining audio fidelity and preventing interference. This transformer should meet standards similar to those found in professional microphone preamp input lines, ensuring that the audio signal remains clean and undistorted.

The overall assembly, comprising both channels, is engineered to remain under a weight of 32 lbs, facilitating portability and ease of use within an appropriately designed metallic enclosure. However, there are significant safety considerations associated with this circuit. The design incorporates non-isolated components that connect directly to the domestic AC power supply, posing a risk of electric shock. Therefore, careful handling and installation are paramount, particularly regarding speaker connections, which are also not isolated from the AC mains.

The approach taken with this circuit aims to reduce the weight and cost typically associated with conventional power supplies, making it an appealing option for amateur audio enthusiasts. However, it is important to note that this design may not comply with commercial regulations in certain jurisdictions, and the author disclaims any liability for the circuit's application or use. Users are strongly advised to possess adequate knowledge of electronics and safety protocols when working with this amplifier circuit.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.