The speaker series Fine Arts, One, Two, Three and Four has been developed in cooperation with the company Arcus and Grundig in our own factory 4 built in Germany. Until 1992, the Fine Arts One and Two remained unchanged in the program. Fine Arts Three and Four were replaced after a short time in 1989 by the successors Three MK II and Four MK II. The MK II version has been technically simplified - instead of a 4-way construction, a 3-way principle is now used here. Similar ribbon tweeters can also be found on Quad ral loudspeakers from this time (Phonologue series).