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Pioneer D Series Speakers

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The D-series speakers are some of the best around. The cones are constructed from dual-layer IMX aramid/basalt fiber. What's that? Pioneer tells us it's "basalt fiber made from natural rock interwoven with aramid fiber. The composite material is highly rigid and better absorbent, enhancing stability and maintaining integrity throughout a wide temperature range." OK, we believe that. The larger speakers come with tweeters and crossovers.