Eikon Audio Image1 Integrated Loudspeaker System $25,000 Review

May 22, 2020 § Leave a comment

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“The two high-excursion 8″ woofers are loaded in an unusual quasi-transmission-line arrangement. In a full transmission line, the woofer’s rear wave is directed down a labyrinth filled with mineral wool (or other damping material) inside the cabinet. The woofer’s rear wave is dissipated as it travels down the labyrinth, and in theory is completely dissipated at the end of the transmission line (the opening in the speaker enclosure that looks like a port). A transmission line avoids the problem of sealed loading in which the trapped air inside the enclosure acts as a spring against the woofer as the woofer moves in. It also avoids the problem of reflex (ported) loading in which transient behavior is compromised and port artifacts (resonances, the sound of air moving through the port, etc.) can become audible. Although a transmission line has none of these problems, a true transmission line requires an enormous cabinet enclosing a very long labyrinth to fully dissipate the woofer’s rear wave. In a quasi-transmission line such as in the Image1, some woofer energy emerges from the end of the line, but it is greatly attenuated. The Image1’s transmission line gets progressively narrower, forcing the energy into a smaller and smaller area that has progressively greater damping. Sanders says that this unusual approach delivers tighter bass than traditional sealed or reflex loading.”

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