I have an audio output from an op amp that is at line level (+/- 0.5V). The op amp is an OPA2134PA, so has an output impedance of less than an ohm.
After the output op-amp I need to do 3 things:
add a capacitor for AC coupling to block DC
add a 100ohm resistor for impedance matching
add a 10k potentiometer as a volume control

Is there a preferred order for these components?

I've looked at various schematics for existing audio circuits and have seen them in a variety of orders.

I'd just be keen to see if anyone has an opnion.

thanks
Paul

 

The 10K shall be at the input of the op-amp, not the output.

A circuit diagram will help for further discussion.

 

Sorry, I should have explained further. The audio output from the op amp is a synthesizer. So the volume control is an output volume control for the synthesizer (rather than an input volume control of an audio amplifier).
I'll post a circuit diagram as soon as I've drawn it!
Paul