EQUALIZER SPLIT TYPE MULTIWAY CONTROL AMPLIFIER

摘要

PURPOSE:To obtain the output of a multiway control amplifier with superior sound quality through simple constitution by correcting the high frequency part of frequency characteristics by a roll-off circuit and the low frequency part by a turn- over circuit. CONSTITUTION:The output of a cartridge 1 is supplied via an amplifier 14 to a roll-off circuit 15, which corrects its high frequency part and sends the resulting signal to an amplifier 16. The output of this amplifier 16 is sent to an HPF and a turn- over circuit 17 to correct its low frequency part. The output of the circuit 17 is supplied to an LPF via an amplifier 18. The flat part of recording characteristics ranges from 500Hz-2.122kHz and its lowest frequency is 500Hz. Consequently, the output of a multiway control amplifier with superior sound quality is obtained through simple constitution.