这种变化的“反应”负荷导致功放输出水平的变化与频率变化，音箱阻抗（动态改变的内容作为扬声器驱动更难） 。
This changing "reactive" load causes the amp output level to change with frequency and changes in speaker impedance (a dynamic thing that changes as the speakers are driven harder).
宁波尊隆电子有限公司成立于1995年，产品包括汽车扬声器、家庭音响高低音单元、舞台音箱、扬声器配件及密封式音箱等。
NingBo ETTON Electronics Ltd. Company set up in 1995. Product include car speaker, Household woofer unit, pa speaker Cabinet, Raw materials of speaker and Boom box, etc.
一位卖，迷你音箱，扬声器，低音炮，扬声器，音频系统。
Sell speaker, mini speaker, loudspeaker, subwoofer, speakers, audio system.
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