The microphone preamplifier circuit design presented in this schematic use SSM2015 produced by Precision Monolithics Inc. (PMI) which offers a high amplification and low noise ( 1.3nV/√f). Has been ...

Here is an Electret Condenser Microphone – ECM preamplifier circuit based on ultra low noise BC650C transistors. Due to difficulty of finding BC650C, instead of them, as you can see in the schematic, ...

Monoprice revealed a brand new piece of audio gear this past week with the release of the Stage Right Studio 2‑Channel 1073‑Style Microphone Preamp. While the preamp can be used for a number of audio ...