MFB adaptor




　　Even if you can't craft new amplifier , don't give up .

　　Your amplifier may metamorphose into the minus impedance amplifier.

　　But be careful of these restrictions.


　1　Amplifier must be non-inverted amplifier.

　2　Amplifier must not be balance output amplifier.

　3　Amplifier must not be 0dB amplifier.

　4　Amplifier must not be No NFB amplifier.

　5 Amplifier must not be class AA amplifier.

　6　Amplifier must not be a precious one.

　Adjusting

　　When variable resister is max , feedback is low . When vaiable resistor is min ,

total gain is smallest. Next to min is the desirable position.




　　Pioneer A01 and Fostex FE168Σ