SparkFun Forums

[noblemaster]

Hi,
I am working on a device that takes input from 40 microphones and send data to PC via Arduino.
I want to use low frequency microphones (5Hz onwards) with around 200-250Hz sampling for each mic.

For this purpose, my preliminary design is like this...
40 Mics --> 40 PreAmp circuits --> Mux Shield II --> Arduino DUE --> PC

Please suggest me suitable commercial available preAmp circuits and any suggestion on the design is most welcome.

Thanks.