Convolver + ReplayGain

[AnnieBody]

I am currently using minimstreamer with a convolver file:
convOut=-i "C:\Internet\MinimServer\opt\bin\convolution\CD7NT_Impulse.wav" -lavfi afir
works very well!

I now want to use the replaygain tag to auto change volume for playlists:
convOut=-af volume=replaygain=track
works very well!

Despite many attempts, what I can't seem to do is get both working together without generating an error.
Can anyone offer a way to combine both these stream options?

Also, just for a little light reading, where can I find out more info regarding the '-(something)' options? I want to know more about what they are doing, rather than just type them in because I have been advised to!
Regards and thanks