Design and Construction of A 300 Watt Audio Amplifier

This paper reports the design and implementation of a 300Watt audio amplifier. The system features also include an LCD. The circuit analysis is presented and procedures for implementation are described. Before implementation, circuit simulation was carried to ensure that simulated results corresponded with the analysis already carried out. Simulation results showed an open-loop gain of about 2600V/V while the result from the amplifier analysis was 2937V/V. This satisfactory results agrees with the required open-loop threshold of >1000V/V for optimal operation. The simulated closed-loop gain was 10V/V which also agreed with design specifications and analysis. The overall result obtained indicates a satisfactory performance.