I am building a microphone preamplifier where I need the input to its non-inverting op amp capacitively coupled. It's designed around the low noise JRC2068 (type DD) and it works fine but I do notice on both the positive input and the output there is around 600mv with a 4.7 mega ohm resistor for biasing (R1).
Using this example picture to help better describe...
I really don't want smaller values for this resistor (R1) which do lower the output offset voltage because it would load down a hi-Z switchable microphone transformers output.
My question is since the ~600mv hanging on the output is also capacitively coupled to the next stage and this all works fine for my build will having such a large offset voltage on the output increase distortion or degrade overall performance somehow? I am nowhere near the +-15v rails on the audio output swing so the <1volt error is not a problem further up my circuit.
Also I want to comment that I do realize selecting a different op amp here with less offset voltage may be wiser or even a jfet input type, but I am working with this op amp for now and it's performance is fine for me if this error voltage is okay to have. I'm just a hobbyist.
Thanks for any help.