Cable septic

All audiophile speakers, including Voxativ models, readily reveal cable changes. My findings in comparisons of full range speakers such as the Voxativ (I reviewed the PureAudioProject Trio15 Voxativ for Dagogo.com) is that it is easy to build a system in which they are more defined and have higher resolution than magnetic planar speakers, such as the Magnepan .7, which I also reviewed. Some full range speakers are so stunningly clean that they make magnetic planar sound muddy. 

Time coherence has zero relevancy to whether cable changes are heard. To suggest otherwise is a categorical mistake. 

Time coherence has zero relevancy to whether cable changes are heard. To suggest otherwise is a categorical mistake.

Changes will be heard, but since the speakers are incoherent, one cannot assess anything but their affect as tone controls.

In your review, you don't mention phase or resonance, yet every measurement extant of the Voxativ drivers show impedance discontinuities due to cone resonances. They may sound alive, but they are certainly not accurate.

Hearing a difference depends a lot on how bad the cable you were replacing was.  I was a power cable skeptic until a friend gave me a sine wave filter power board thingy and a chunky cable.  I plugged them in just in case the friend came to visit.  I was astounded at the difference, But my original setup had had a cheap and nasty power board in the line with lots of gadgets plugged into it.

As for line in cables, I've been very pleased with Chord Clearway RCA cables which are around the hundred pound mark.  I don't think I would spend any more on a cable, although I consider it a lifetime investment.

@mmporsche - sorry to be a bit late to the party here, but to answer your original post question - which cables will make a difference - any cable from KLE Innovations will improve sound.

I have used/reviewed several models, from entry level to top of the line and compared them to a couple of the popular brands and the KLEI products came out ahead each time.

The only problem - they are not a well known brand and therefore has little in the way of resale value. But if they are the last cables you buy then it's not an issue

If it's a DIY solution you are considering take a look at
...
http://image99.net/blog/files/54c02c12532d31f960ee85a6ed674b01-83.html

I use these throughout my system and they provide the best performance across the board, with an exceptionally large image and sweet spot.

I normally recommend starting with speaker cables, followed by IC's and last of all power cables.

Hope that helps

Regards - Steve