Audio system using multistage amplifier - having each stage coupled via filter to assigned speaker

摘要

The audio amplifier has the signals for different loudspeakers of the audio loudspeaker system obtained from different stages of the amplifier. Pref. the first amplifier stage is coupled via a high-pass filter to the HF loudspeaker and is coupled to the following amplifier stage via a low-pass filter. The second stage is coupled to the mid-range loudspeaker via a high-pass filter and to the third stage via a low-pass filter. The third stage is coupled to the bass speaker directly. The system is designed to prevent noise signals being multiplied by successive amplifier stages.