high fidelity
US /ˌhaɪ fɪˈdel.ɪ.ti/
UK /ˌhaɪ fɪˈdel.ɪ.ti/

1.
High Fidelity, Hi-Fi
the reproduction of sound with little distortion, giving a result very similar to the original
:
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The new audio system offers high fidelity sound.
Das neue Audiosystem bietet High-Fidelity-Klang.
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Audiophiles often seek equipment that provides true high fidelity.
Audio-Enthusiasten suchen oft nach Geräten, die echte High Fidelity bieten.