Speaker cables.. Budget again.. With a twist...

You'll notice that the scientific term for our understanding of electricity is "theory". There are understandings that we have in science that are termed, "law"(IE: 1st and 2nd "laws" of Thermodynamics, The "law" of Universal Gravitation) In Science, when something is proven by The Scientific Process(or "method"): First a "hypothesis"(or "theory") is put forth. Then it is proven(or not) by repeated experiments. If the phenomenon can be (1) repeated, (2) observed, and (3) recorded: It is then considered a "Law or Scientific Fact." when testing an hypothesis or a theory, the scientist may have a preference for one outcome or another, and it is important that this preference not bias the results or their interpretation. A most fundamental error is to mistake the hypothesis for an explanation of a phenomenon, without performing experimental tests. Sometimes "common sense" and "logic" tempt us into believing that no test is needed. At any rate: Electrical or Electron Theory is still just that. The theories that have been put forth concerning electron flow can hardly been observed at the Quantum level at this point in time, thus they are not observable. Some experiments have been conducted of course but nothing to date is set in concrete. In fact: The theories are still constantly in a state of "flux." Read this article(from 1962), and then see if you can find something since that "proves" anything about electron flow: (http://www.philsoc.org/1962Spring/1526transcript.html) Note the summation states: "It is possible and in fact likely that some basic new principles and ideas will have to be added to what will be left of standard quantum field theory in order to provide for a complete and consistent description of electromagnetic interaction, and, in particular, of the electron. The future will tell which of these various conjectures are valid. If, nineteen years from now, the fiftieth Joseph Henry Lecturer should again discuss the theory of the electron, the chances are good that he will know the answer to many of these questions." That there are so very many that can indeed HEAR the improvements that various cables, interconnects, etc. make in our systems can be considered "Empirical Evidence", and (without proof that there are Quantum Laws that control those improvements that they make) enjoy the resultant music!

The Blue Jeans Belden speaker cables are great and cheap. I've switched them out of my system a couple of times for more expensive cables only to bring them back in and sell the more expensive ones. Their locking bananas are also very nice.

Leaving science and theory aside, the contention that auditory perception is a reasonable basis for choosing one cable of the same guage over another is also flawed. I am unaware of any studies conducted with reliable controls (i.e. double blind studies conducted by an uninterested party) that show that humans can tell the difference between such cables. The last I heard, audiophiles could not tell the difference between metal coat hangers and specialty cable. What is argued to show this difference is offered as emperical evidence, but is no more than anecdotal evidence. One can find anectodal evidence to prove anything - sightings of big foot and ufo's for example. By the way, I concur with Sinisterporpoise68 - Belden cable works great. Belden has had a consistently good reputation for decades and is an industry standard across applications. Furthermore, Blue Jean Cable has a relatively low markup. To get it for less one pretty much has to buy large fairly large rolls.

"At any rate: Electrical or Electron Theory is still just that. The theories that have been put forth concerning electron flow can hardly been observed at the Quantum level at this point in time, thus they are not observable."

That may be the case, but the EFFECTS of electron flow CAN be observed, repeated and measured/recorded. It may be referred to as "theory" but the reliabilty of it is undeniable; otherwise a standard light bulb wouldn't work, let alone any complex electronics like computers or audio gear.
It is often the case that observation and measurement of an effect is worth as much as observing the subject. Astronomers can locate and study black holes or new planets by the effect they have on their surroundings; we don't dismiss such science simply because the planet or black hole has not yet been studied.

Back to wire: I've chosen (relatively inexpensive) silver over copper wires for my speakers based on a slight lift in the upper frequencies this produced, and I have heard improvement from a cheap 'supplied' IC to a high grade aftermarket one.
However it bothers me that some here fall over themselves to believe the pseudo-scientific claims made by some expensive cable makers, and then dismiss established electronic and metallurgical science when it suits them.

Go back to Home Depot and get THHN. These are relatively thick and they don't bend well, but there is nothing better at that price point. You will need 4 cables...all the same length. Put spades if you can find them on the ends..or rings if you can use them on your amp/speakers connection. If not, you have to use a saw, or tin snips to cut these to make spades..The spades should be the ones that have a screw to secure them. Don't solder them..it will decrease the performance. You have to spend WAY more money to get anything better than these...especially at those lengths. I can surely guarantee you will be happy with these until you can spend mega bucks for the high priced spread.