高音和超低音扬声器的直径100mm 或3.94寸，铝制振膜，高音扬声器的圆顶振膜还增加一层陶瓷表面。
The tweeters and subwoofers measuring 100mm or 3.94" in diameter feature aluminum membranes with an additional ceramic surface on the tweeter domes."
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。
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.
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