Some months ago I got a really useful matrix mixer from repeater electronics.
http://hellospiral.tumblr.com/post/62746932395/hullo-im-back-from-tour-and-matrix-mixers-are
anybody else of you using matrix?
Kinetik laboratories just released their own one, that as usual looks very good as well.
http://kinetiklaboratories.blogspot.it/
(http://3.bp.blogspot.com/-dKX9URU-6Co/Um5eBds1izI/AAAAAAAAAMQ/yjmifnwoTAc/s1600/XMATRIX.png)
Yep, built one, it's a good piece.
I built one, took a while because I first wired it up backwards (~_~;) and then decided to redo all the resistors with a lower value, but it works OK now. I kind of want to make an active one but it was tedious enough building it passive so I'll just try and actually figure out a good way to use this one first. Promising attempts so far but not ready for live use yet, need to find a solid setup. things get COMPLICATED.
(https://scontent-a-lhr.xx.fbcdn.net/hphotos-prn2/1170781_10151871348203659_743813016_n.jpg)
I got this one a little while ago. Still working out ways to put it to good use - so far I like it a lot.
http://xiwielectronics.com/products/passive-matrix-mixer
The Kinetik laboratories model looks pretty but only 3 ways...and a bit expensive for what it is.