I got a flat screen TV in October, HD TV in December, then I caught the Home Theatre bug and bought a new receiver and speakers. I started by purchasing the KEF iQ2 centre and used the EPI 100s that I had lying around (since the eighties) for left and right fronts with no surrounds. Then I added the KEF iQ5s for up front a week ago and am experimenting with the EPIs for the surrounds. I do like the KEF, by the way. I have a cheapie subwoofer that I want to upgrade in the summer but that is another issue. Harmon Kardon 146 AVR. I was thinking of KEF iQ1s for surrounds when they next go on sale. I can afford to do that but maybe it is wasting money if I can use my EPIs. But maybe EPIs are so radically different that I should not put them to use in the KEF scheme of things even if they are functioning properly. Maybe my EPIs are "too much" speaker for surrounds with the KEFs and I should use the EPIs for something else? For those not familiar with the EPIs, they have an 8 inch woofer and one inch tweeter and stand 21 inches tall. A good sized bookshelf speaker Even if you know nothing of EPI please respond to how important you think it is that the surround speakers match the front by the same brand/line. I am finding with the EPIs I have to set the surrounds to +5 dBl on the AVR to get comparable loudness. I don't want the speakers to compete against each other - that is why I wonder if the KEF iQ1s would be more compatible for home theater. Or maybe the EPIs are fine for the little audio that comes from the rear speakers?