...荧光显示，红外线遥控单纯线路电平输出(需要外接功率放大器)18FM/6AM电台预设超精确轮转式音量控制 Speaker Impedance扬声器阻抗 FM Usable Sensitivity (dBf)实际灵敏度9 ..
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Speaker Impedance Detection 喇叭阻抗侦测
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).
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） 。
But continuously press the speaker, if the moment strong current passed impedance can still regular work, quare will like bad.
但不断按喇叭时，若瞬间强电流通过阻抗依然能正常工作，所以会时好时坏。
Sometimes a lot - for instance, you might see an impedance result of anywhere from one to as much as 50 ohms from a particular speaker design within it's normal operating frequency range.
有时这种变化的幅度会非常大，例如，你可能会观察到一个扬声器在普通的工作频率范围内其阻抗可能是从1欧姆到50欧姆之间的任何一个数值。
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