The Aretai Contra 100S is a 2.5-way bookshelf design featuring a 1.75" ring radiator tweeter housed in a custom-built waveguide horn that sits on top of the speaker. Each speaker also includes a pair of 6" forward and rear facing drivers to give them more punch than their diminutive size suggests.
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At $9,900/pair, they aren't inexpensive and in fact, you could get incredibly competent fullrange towers at or less than this asking price. Does this mean, the Aretai 100S aren't worth it? Based on Don Dunn's listening experience, you may be surprised to find out just how much he enjoyed these speakers.
Read: Aretai Contra 100S Bookshelf Speaker Review