After reading the journals at www.audioperfectionist.com , I tried implementing some of the advice, namely positioning and the removal of the centre channel. I must say that getting rid of the centre speaker has made the biggest improvement in audio quality I have ever seen in my system. Next on the list would have been the time I bi-wired everything. I had been using Mirage's top of the line speaker, the OM-C2 which has been around for a long time. I'm not going to suggest this is for everyone but it doesn't take much to try. If you aren't satisfied with dialogue (as I haven't been for ages), just tell your receiver that you lack a centre speaker. The dialogue is now no longer anchored to the middle, and seems to flow much nicer with the scenes. The dialogue is softer and clearer and there seems to be more of a 3-D effect. See for yourself.