2x1 mini analog mixer

Necessity is the mother of invention and today necessity has given me another option for Mixing.  I wanted to be able to sum (Mix) two mono tracks together in the analog realm, but I didn't want to use the Midas Venice 240 for such a simple task.  The board has a good degree of color to it and I wanted minimal coloration for this task.  I'm trying to reduce the track count in a session I'm starting to Mix, so I can fit every track on the Venice. The obvious solution for most would be to combine the two tracks digitally in Pro Tools (ITB), but that's not the best sounding solution.  DAW based summing is not something I enjoy the sound of, so for me its analog or nothing.  But with analog comes limitations and I love limitations because that's what brings out my creativity.   

I built a 2:1 passive summing buss right inside one of my patch bays.  2 inputs get summed to one output.  Its simple, has no controls, and is unpowered.  Traditionally, an unpowered (passive) summing buss needs to be connected to a preamp for makeup gain.  Not this little guy.  Since there are only 2 channels being summed, the insertion loss is negligible.  The greatest thing about passive summing is its total lack of coloration.  Problem solved!  Now back to Mixing :)