ハイファイ

noun, na-adjective

hi-fi; high-fidelity audio

Used as a noun or な-adjective for audio equipment or sound reproduction with high fidelity; somewhat technical and often associated with audio gear.

• 父ちちは古ふるいハイファイ装そう置ちを大たい切せつにしている。

  My father takes good care of his old hi-fi system.

• このスピーカーはハイファイな音おとを出だす。

  These speakers produce hi-fi sound.