Speaker simulator V30

Frequency response

Dark blue - original С6 = 100 nF, red С6 = 47 nF, light blue С6 = 33 nF

With possibility of supplying by single and dual polarity power supply

Schematics (pdf)

Ready to transfer PCB (pdf)

Upper side assembly (pdf)

Bottom side assembly (pdf)

With additional possibility to use "-" or "+" of power supply as reference ground with single polarity supplying

Schematics (pdf)

Ready to transfer PCB (pdf)

Upper side assembly (pdf)

Bottom side assembly (pdf)

Assembled board