high fidelity noun
[noncount] : the very good quality that some recorded sounds or copied images have
— high–fidelity adjective
▪ high-fidelity [=hi-fi] recordings ▪ high-fidelity sound ▪ high-fidelity speakers
▪ high-fidelity [=hi-fi] recordings ▪ high-fidelity sound ▪ high-fidelity speakers
