Thanx "mfilter". Also found this site this morning. Now we need a pcb genius to produce a layout, anyone up for it?
The mic preamps cold be any four channel mixer with the right hand chunk
of the "B" format matrix or even better pcb's for both.
I have heard a recording of a jam-session (all acoustic+vocals) made with a soundfield mic placed in the middle. The soundstage through headphones was amazing, it had me turning round to look at the player who sounded as though he was behind me.
Ambiosoncs got a bad name when it was confused was Quadrophonic, which WAS crap, but I liked what I heard.
Steve