Introduction to Some Effects of Audio Speakers

During the production process, it is necessary to properly match these components. The wiring methods between them vary, resulting in different transmission effects of music signals, which in turn leads to variations in the sound effects heard from the audio speakers. For audio speaker cables, impedance conversion is also an issue that needs to be considered.

The so-called matching between the power amplifier and the audio speakers typically refers to converting the impedance between them, through the audio speaker cables, to the impedance required for the audio signal, known as "impedance matching." The rated output impedance of power amplifiers is usually the same, such as 4 ohms, 6 ohms, or 8 ohms. However, this "impedance matching" actually refers to the impedance at a specific frequency (e.g., 1 kHz). Because audio speakers produce different reactive impedances based on the frequency of the music output by the power amplifier when they are in operation. In practical applications, it is impossible for the power amplifier and audio speakers to match impedances at different frequencies.

Therefore, the impedance conversion between them still relies on the audio speaker cables to complete, and this "transformation" constantly changes as music is played. So, we can achieve the same frequency response by changing the wire diameter of the power amplifier itself or connecting it to the same cable. Upon closer examination, various cable types exhibit different impedance variation characteristics and effects, which also contribute to differences in their overall audio effects.