The driver chassie is a pure aluminum die cast contruction with an acoustically transparent design. 驱动器底座为纯铝铸结构,采用透声设计。
Mixed RE elements could improve the conductivity of pure aluminum with relatively high content of impurities, but had little effect on that with relatively low impurity content. 混合稀土对杂质含量较高的纯铝的导电性有改善,对杂质含量低的纯铝的导电性基本不起作用。