Hi everyone, Most of you all can tell from my post count I am new. I have read up on this tuner from other posts but I have a more generic question about it. What is matrix 6.1? Is there a true 6.1 or is it all just the rear speakers blended together to produce a 6th channel. What type of 6.1 is this? Also where is the best place to get this item with shipping factored in. I only find it as cheap as 499 and I know people get it cheaper than that. Also if you recomend places can it be a place that sony will recognize the ES warranty. Thanks for all the help.