金山工業集團為一家亞洲跨國集團，透過其主要投資管道： GP工業有限公司，進行多個優質工業投資項目。集團之主要產品類別如「GP超霸」電池、「KEF」喇叭和「CELESTION」喇叭，均已成為業內著名品牌。 金山工業現在擁有GP工業約81.1%*股權，GP工業則擁有金山電池國際有限公司約49.7%*股權。GP工業及金山電池均在新加坡上市。金山工業集團之生產設施、產品研發行銷及銷售通路遍佈全球十多個國家。 金山工業集團於1992年正式收購KEF , 將嶄新的概念、風格與產品與KEF 的英式傳統兼容並蓄，憑藉其深厚的研發根基及生產設施，加上在音響、設計、分銷與產品品質上的優勢，將 KEF 發展至享譽國際音響界。

KingRex Tecnology was established in Taipei, Taiwan in the late 1980s as a privately held trading company that specialized in Liquid Crystal Device, electronics, and entertainment gear components. The early mission of KingRex focused on obtaining electrical parts from various regions and then assembling high quality entertaining devices and arcade game displays and device which is the first time KingRex involve the design and manufacture job in audio and video products. During the 1990s, KingRex established its own manufacturing facility in Taipei city within the worlds’ most abundant resources for electrical parts and supplies. So KingRex started involved in other business field such as PDA battery, memory, RE module, ODM Japanese game machines including the audio amp circuit design for the game machine, and LCD monitors and display module as advertising machine. All these experience and technology base on our continuously creativity, outstanding activity, and peculiar executive. In the end of 2006, KingRex devoted its source to design and create PC Hi Fi and mini audio amplifier and DAC products to reach most audiophiles’ desire. Our goal and insistence is continuously creativity to manufacture the highest quality products to fit the satisfaction of all of our customers. The revolutionary KingRex T20 AMP, size of 4x6x8 inches, embedded TA-2020-020 DPP chip sensitivity 86~90dB, delivered two by 20 Watts power at 4 Ohms and reached Class T sound quality. KingRex embarked on an ambitious research of revolutionary amplifiers, within few years of effort, its product line expanded to pre-amplifiers, amplifiers, DA converters, power supplies and speakers. The company’s focus remains on producing excellent audio devices and delivering exceptional service to its customers. Our reputation is built on contributing our advanced technologies, special developers, and valuable experience to its collection of audio devices.