👉 A quadraphonic system is a type of sound processing that combines multiple sources of audio into a single, high-quality sound signal. This technique was developed in the 1980s and can produce high-frequency sounds with different frequencies (such as 70 Hz or 200 Hz) at various levels of intensity. Quadraphonic systems are commonly used in home theaters to create an immersive audio experience for viewers, allowing them to hear multiple sources simultaneously. They typically feature a single