A little late in the arguement but...
Josh, the T2Biwires made a tremedous change in the 3d imaging of a set of KG5.5s 6 or so years ago when I got them (and still do)
For all the disbelievers, just keep in mind these are not just wires. They have a box that contains a passive circuit that in most account is call a zobel network.
Here is the first link I found for the unknowing: http://www.trueaudio.com/st_zobel.htm
Anytime you give a more presentable load to an amplifier, distortion and other audible components can be decrease. Sure there is a lot of snake oil in this hobby, but some do actually have a measurable and audible result.
It is a costly solution that can be incorporated DIY on the xover or box between the amp and speakers. Keep in mind you can "blow" the speaker cable (doesn't that sound funny) so be careful!
-CAL