Upgrading speaker cables...

Thanks everyone for the responses! 

These are what I have now...

GearIT 12AWG Premium Heavy Duty Braided Speaker Wire (6 Feet) with Dual  Gold Plated Banana Plug Tips - Oxygen-free Copper (OFC) Construction, White.

I got them off Amazon for $15/pair. I bought them because they looked really nice, and were inexpensive. I know my speakers arent great, they're prolly not even good, but would better cables help them or no?

@shadorne  What is "this"?

@dill is right. The key is how resolving your system is which will dictate how much difference you hear.

No. Your existing cables are fine. Save your money. Your speakers are excellent.

Back to the original question; you are better with one better set with jumpers than two pairs of a lesser cables. Just use what you have for now and make some simple jumpers of your own with some decent cable which should outperform the cheap jumper strips that come with most speakers; if you don’t hear the difference with this first simple test then likely your system/speakers are not revealing enough that tweaks are very noticeable but probably sounds very musical nonetheless. Not everyone has great hearing or knows how to listen or what to listen for; for many of us it takes years to learn how listen to hear the differences between cables and tweaks. If you do hear the difference between making your own jumpers then experiment with some better cables but be smart on what you spend. You can find a lot of nice cables used or have some fun building your own - VH Audio is one of several places to buy bulk cable. As several have said here, you have to listen with your own ears and not too much to us. Have fun, good luck and Tweak away. More importantly enjoy the music.