The 15x sub and 18x sub are also available as an active subwoofer.

小组的15倍和18x的小组，也可以作为一个积极的低音炮。

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The Twin-X series offers a choice of four different subwoofers: the Twin -15X Sub, Twin-18 Sub, Twin 15-X Sub Active and the Twin 18X Sub Active.

在双X系列提供了四种不同的低音炮：在双分15倍，双18分，双15 - X小组活动和双18X的小组活动的选择。

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The Twin-15X Sub Active and the Twin 18X Sub Active are high efficiency powered subwoofers that features a 450 Watt and 600 Watt (RMS) class AB module respectively.

在双15倍小组活动和双18X的小组活动的高效率超低音扬声器，具有一个450瓦，600瓦（RMS）的AB类模块的分别。

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There is projected to be an 18X increase in data traffic as measured from 2010 to 2015.

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Once you flip them on, however, you'll probably notice the S9500's whopping 22x zoom lens, compared to an 18x optic on the S9400.

ENGADGET

Their price to sales ratio for this year would be 18x.

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