And there’s more! Compression drivers run at a small fraction of their output capability, are accurate, with much less distortion than an ordinary tweeter, and their efficiency means home users will never drive them to their limits. The result is fewer counterproductive reflections, less sonic variation by location (wider sweet spot), and – if the crossover is well designed – better integration with the woofer, giving better imaging. Dive in here at your own peril (it’s hundreds of pages long), but the rationale is simple: modern waveguides effectively disperse the audio frequencies in their bandwidth with greater control and consistency, both vertically and horizontally, than the tweeters they replace. What and Why: DIY guys who’ve been around a while will know about the nearly infinite AudioKarma thread on replacing the tweeter on old two-way speakers with a compression driver and modern waveguide. My story of an Econowave conversion of Utility Large Advents
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