Hifi (high fidelity) sound quality refers to high fidelity sound quality, and strives to restore the original quality of audio signals as much as possible. Hifi sound quality equipment and technology can provide higher audio resolution and more accurate sound reproduction, so that listeners can truly feel the details and emotions of music. In contrast, high-definition audio refers to the high fidelity of audio, but there is no strict definition and standard like Hifi. The advantage of Hifi sound quality is that it can restore a wider frequency range and lower distortion, making music clearer and more realistic. Hifi audio equipment usually adopts high-quality audio components and technologies, such as advanced digital converters (DAC), high-quality audio amplifiers and high-fidelity speakers. Using these devices and technologies can provide higher dynamic range, lower noise level and more accurate sound localization.