Solid core Versus Stranded Speaker cables

@stringreen - sorry, I am still using double-runs of 12awg stranded OFC copper for speaker wire (basic monster cable or stuff from Monoprice - or any equivalent source). I find this excellent and neutral speaker wire. It is actually much better than some lower end exotics (like some Nordost Blue Heavens and other "under $1k" cables). It’s also much better than silver-plated, in my opinion. In fact, I avoid anything silver. Just one tiny element like putting in a silver-plated fuse clip or a silver based fuse will change the sound -- silver will push the upper mids/highs and make the sound more artificial. The ultra-high frequencies will be smoothed out and everything else is smoother too. Not neutral, in my opinion.

I have put all my R&D in power cable and interconnect for the last few years. I have just converted everything I have over to Rhodium plated Furutech (all power cord connectors, fuses, and XLR connectors). My 20awg solid-core braided interconnects used to have gold-plated XLR connectors. Moving these to Rhodium made them the best interconnects I have ever heard. These are absolutely amazing!!!

Speaker cable R&D is on my list, but I won’t get to it for a while. However, I will start with the Neotech NES-3002. It will probably be raw copper wire at the amp end and I will probably use Furutech Rhdium spades at the speaker end (they are all bi-wire and some of my speakers do not have a "wire hole" for raw wire).

I have also noticed that the terminations that some of these manufacturers put on speaker cable really degrade the sound. I have found that, on some cable, chopping off the termination and stripping to bare wire improved the sound tremendously!!!. Not that I am telling you to chop off the ends of several-hundred dollar cables (resale value), but it may make a difference if you choose to.

I have also noticed that the terminations that some of these manufacturers put on speaker cable really degrade the sound. I have found that, on some cable, chopping off the termination and
stripping to bare wire improved the sound tremendously!!!.

Took a quick look at the Jenving stuff.  They are just using tinned copper (which can actually be cheaper than OFC copper).  It's a plated coating on the copper to prevent oxidation.  It's true that tin is not as conductive as copper, but it is still conductive.  Look at the following:

http://www.mains-cables-r-us.co.uk/sitefiles/15/2/2/152201/On%20the%20Conductivity%20of%20Selected%20Metals.pdf

Copper conductivity is 59,77.  Many products (such as terminations) using different types of plating to affect the sound. They may be less conductive, but they still work well.  For example, Gold plating (at 42,55) gives you  more of a laid back sound.  While Rhodium (at 22,17) which is much less conductive will actually give you faster more detailed sound.  Brass at a very low 14,94 will transfer a lot of current and be very strong/forward.  You'll also see Nickel plating used in a lot of industrial connectors. 

I still think there is some cross-conductivity in the Jenving tin-plated strands. It's my opinion that they are just giving you a marketing statement to get you to buy their cheap tinned copper cable.

If you really want true coated strands, look at Cardas Litz wire.  Each Cardas strand is actually coated with enamel, which completely prevents any conductivity between the strands.  This is good and does exactly the same thing as solid-core.  The strands are typically much thinner at 26awg or smaller.