Advanced features include adaptive bass extension, highly accurate loudspeaker crossover and filtering, 3d audio processing, APC (automatic position correction).

高级功能包括自适应低音扩展，高度精确的扬声器分频和滤波，3d音效处理，APC(自动位置校正)。

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Alpine reports that this is the first crossover to ever take into account mounting position, phase, and phase integration between subwoofers and tweeters - Ed.

高山报告说，这是有史以来第一次交叉考虑到安装位置，相位和低音和高音之间相融合-。

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For the even weld of crossover pipe pieces with reliable welding, the project requires to cut the weld position of crossover pipe pieces into shape exactly.

工程上，为了管件的相交处焊缝均匀，焊接可靠，需要将相交管件的焊缝处准确切割成型。

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