Don Keele, one of the world’s most famed speaker scientists, demoed his radical Audio Artistry CBT36K Constant Beamwidth Transducer line array. The arcing cabinet’s 72 tweeters and 18 midrange drivers produce incredibly consistent dispersion — you can stand up, sit down, walk around, and the sound stays essentially the same. The CBT36K is available as a $1,980 kit from Parts Express; it also requires a separate $300 digital crossover/equalizer. Fully assembled versions are available.
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