noun
multichannel amplification
Refers to the technology or process of amplifying multiple audio channels simultaneously, as in home theater or professional audio systems.
このAVアンプはマルチチャネルアンプを搭載している。
This AV receiver features multichannel amplification.
noun
multichannel amp system
Refers to the physical amplifier unit or system that handles multiple channels, often used in audio equipment contexts.
新しいマルチチャネルアンプを導入してサラウンド環境を整えた。
We installed a new multichannel amp system to set up the surround sound environment.