JL Audio Fathom IWS-SYS-108嵌入超低音

http://intl.jlaudio.com/product/85025.104392.103786.0.0/IWS-SYS-108/_/Fathom%26%23174%3B%26%23160%3BIWS-SYS-108

8"單體，太大就太深了...
被動式，擴大機散熱難搞...