There is no comparison ( wallet/SWMBO permitting!!). If you hear the 8ks - they are near enough addictive. I have a 7200/5500HC SW1600 & the memory of the 8ks still pales my kit - well no brainer there!!:)
A good friend has just upgraded his system to 8ks from a set of 7200's. I can state unoquivocally that the difference in his room was amazing - without going into the convolutions of the phsycho-acoustic effects etc. If you can legally get the funds I'd aspire for the 8ks any day of the week. Surprisingly, they work well in rooms that would otherwise be deemed "too small".



861v6+ID40, 800D, QNAP269L, 7200SE, PS3, Panasonic PTAE-3000. Richard Gray Power supplies & Harmonic Technology/Transparent Audio/Wireworld Audio & Power cables.