Class D amplifiers and measurement mic

[goldyrathore]

I came across these Class D amplifiers (finally in rupees) and down to earth prices:-

TDA7492->Product Reviews|Audio Amplifier Module B25|Audio Amplifier Module B25|Tenettech
TDA7498->Product Reviews|Audio Amplifier Module A80|Audio Amplifier Module A80|Tenettech


Elektret mic, probably can be used as a measurement mic
Product Reviews|Electret Microphone Amplifier - MAX4466 with Adjustable Gain|Electret Microphone Amplifier - MAX4466 with Adjustable Gain|Tenettech