Jvc drvn subwoofer
A subwoofer or sub is a loudspeaker designed to reproduce low-pitched audio frequencies known as bass and sub-bass , lower in frequency than those which can be optimally generated by a woofer. The typical frequency range for a subwoofer is about 20- Hz for consumer products, [1] below Hz for professional live sound, [2] and below 80 Hz in THX -certified systems. While the term "subwoofer" technically only refers to the speaker driver, in common parlance, the term often refers to a subwoofer driver mounted in a speaker enclosure cabinet , often with a built-in amplifier., ...1
1