I did sound today. This involved taking a PC with 5 sound cards and a mixer to a place with a sound system. It sounded shite, I don't know why, it was OK on monitor. Also, I'm not totally sure what I was trying to achieve. I proved to myself that the system works with six turntables in production without dropouts and overload but I didn't produce any useful sounds. It's not like there are that many things you can do with more than three turntables anyway, why did I bother?