Guys Good Day, I'm not sure if this topic is at the right place to post. How does the PRESENCE EXTRA SPEAKERS in the front work? Is it only gonna work w Dolby PLIIx, DTS or it will so also function during the Dolby Tru-Hd & DTS MA modes? I know that turning this function on will also cease the operation of the BACK SURROUNDS. I'm using a Yamaha Receiver, hopefully somebody could shed some light on this matter. Thanks