There are four main types of Hi-End speakers: the first type is the products produced by Hi-End speakers manufacturers, which are generally small in scale and mostly American manufacturers, with low output. They only produce high-quality speakers with high prices, such as Avalon, Genesis, Hales, Thiel, Martin? Logan (Martin Logan) and Wilson? Audio (prestige); Sonis? Faber (Shiba Inu); Wilson, England? Products of Benesch and other manufacturers. Second, the flagship products and special products (commemorative products) produced by speaker manufacturers represent the company's image and strength, such as British B&; W's nautilus, silver? Signature? 25 (25th Anniversary Silver Jubilee Signature Edition); Tianlang Kingdom (Tianlang); Grand of JM Laboratory in France? Utopia (supreme utopia); K2 and Centura of American JBL Company? Gold (50th Anniversary Edition); Orile in Jamo, Denmark, Century in Avance, Evidence in Dana, etc. The third type is the speaker originally designed and manufactured for recording studio monitoring. Because of its excellent effect, it is relatively used by senior enthusiasts at home. .