| 摘要 |
<p>To eliminate the increase in impedance which would otherwise occur in the cross-over region from one to the other of plural loudspeakers 1, 2, a series resonant circuit, comprising an induction coil 7, a capacitor 8 and a resistor 9, is connected in parallel with the speaker channels between common input terminals 5 and 6 to the speakers. A third input line 10 connected to the terminal 5 may include a series resistor 11 and a temperature-variable resistor 12, which resistors 11, 12 are connected in parallel. Terminal 5 is intended for connection to a 4 ohm amplifier while terminal 10 is for connection to an 8 ohm amplifier. <IMAGE></p> |
