Lesa

Hello guys,

I was wondering if any genius out there who knows about preamp circuit who can explain this one to me.

See I am just getting into audio systems design and I am try to understand this preamp circuit and how it works.

A few questions:

1)what does the two cap in series does and why are they connect to ground?

2) what does R3, R1 and R2 does?

3) What is the uses of the polarity Reverse?

I have been reading up on these component but i am a little slow on understanding.

I would appreciate the help.