[12/14/2019] Definitive Technology D11 Demand 系列書架型喇叭(一對)，Definitive Technology D11 Demand Series Bookshelf Speakers for Hi-End Stereo Systems | New and Unique Tweeter Design | Acoustically Transparent Magnetic Grille | Pair, Premium Piano Black，目前特價$549 USD。Prime境內免運費 (學生可以免費試用Prime)。哪裡買: amazon。