在speaker workshop 的HELP中有这样一段描述"An x10 cable. An x10 cable is an input cable that reduces the input voltage to the sound card. The simplest circuit is a series resistor in the left and right input lines (not the ground line). That series resistor should be approximately 10 times the input impedance of the sound card (calculated in the calibration sequence). Use this input cable for higher voltage (up to 10 watts with a standard card. Change the values in the Options Preference dialog (the new input impedance is the (sum of) the sound card input impedance plus the series resistor. "
它是怎么样实现这种测量的呢?
我在想一个问题:我们在设计扬声器系统时用的是小信号(如1W)T/S参数;但这些参数在成品音箱使用时是大于1W的,如10W,100W。怎么办呢?