In the process of updating some of the equipment from the studio, i went today to see a very interesting sound engineer who builds his own custom audio gear. JC is living 40 minutes from Paris in a small town named Bazemont. His mastering studio is located in an house made entirely out of wood, which is pretty uncommon in France. We had a nice talk about music, gear. And after that, i had to take a close listen at a few audio excerpts made with an without some kind of equipment called summing mixer, that basically helps giving an extra flavor to the music. What's kind of frustrating with these machines is that one feels more the difference than actually hear it. At least when not trained properly. I had to strain my ear a bit, but could finally perceive a difference and got convinced if not already before coming, that it WAS an important piece of gear.