Gain stage for Mix Out/Filter In

Thought I’d finally experiment with pushing the filter harder for some overdrive but I’m not quite sure how to do it. I haven’t got a decent mixer for this unfortunately. Are there any small devices that can be used with a good result?

Sorry if this already has been asked a hundred times. Tried to search but couldn’t find.

Sorry, I’m an idiot. Totally forgot about the Knob Tweak article. Though I would like to know what you use to boost the signal. Got a Minifooger Drive but maybe its to hot.

Anyone?

http://forum.moogmusic.com/viewtopic.php?f=2&t=23804&hilit=insert+freqbox

Thanks!