I recently visited a richer sounds store looking to consider a mission cinema m72 or m73 speaker package. I was told by a member of staff that they are struggling to get hold of the centre speaker due to mission apparently discontinuing it and bringing another model out in the near future. they dont know what it's specs are so cant match the speaker set up anymore until they know what they are. Is this true, I havent seen anything on missions website about this. Any comments?