| 摘要 |
PURPOSE:To control freely the sound quality in recording time and reproducing time, by providing a graphic equalizer amplifier which can change freely the sound quality at the following stage of an amplifier which amplifies recording and reproducing signals. CONSTITUTION:The output of a graphic equalizer amplifier 4 can be applied to a magnetic head 1 in a recording time. When record/reproduction changeover switches S1-1-S1-3 are applied to a terminal (p) of the reproduction side, the signal reproduced by the head 1 is applied to the amplifier 4 via the switch S1-2 to obtain optional sound quality. When switches S1-1-S1-3 are applied to a terminal R of the record side, the output given from a mike is applied to the amplifier 4. Thus the recording is possible to a magnetic tape, etc. through the head 1. In such a way, the sound quality can be freely controlled in recording time and reproducing time. |
