The only issue is that I got my 750 sigs "B" stock for about $900 with shipping. To pay for shipping (both ways) any pay for the delta between the two speakers, we are still looking at a chunk of change. I was going to wait to hear them in my area before I do anything. If I did go with the 1K I would think about moving my M60's to 2 channel and sell off my QS4's. That is one upgrade my wife would notice and I would catch some crap over. We'll see though