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What is Quad 405 Power Amplifier Modifications about?

This document summarizes modifications made to a QUAD 405 power amplifier. It begins by providing background on the amplifier and discusses issues with high input stage noise. It then details several modifications made, including replacing components to reduce hum and distortion, improving the current source, and moving capacitor C8 to the emitter of transistor Tr2 to reduce crossover spikes in the residual distortion measurement. The document analyzes the amplifier design compared to other QUAD models and

Author

VerecondoOrtalli

Language

EN