| 摘要 |
<p>In a speaker system having plural speaker units, at least one of the plural speaker units has one resistor for level adjustment that is positioned between terminals of a speaker and a switch for switching connection circuits for connecting the resistor for level adjustment with the speaker. The resistor for level adjustment is connected with the speaker in series or parallel by the switch when performing the level adjustment. The speaker system can get two species of adjustment curves by using one resistor for level adjustment.</p> |
