As a electronics and electrical engineer, I can tell you wasting money on expensive brand cables, weather it be for speaker wire, audio component cables or HDMI video cables are a waste of money. One might pump a signal down a cable and look at the wave with a oscilloscope or spectrum and see a minute difference, but to the imperfect human ear, there's no way in hell you're going to tell the difference.
Especially if your over the age of 10. The human ear Deteriorates as we age, loosing effective hearing from 20,000 Hz (the top of the range down to 1000 Hz, every day of your life. So spending extra money on expensive cables won't do a thing. For speakers, get some standard copper 18g - 16g wire, and be done with it. For component RCA plug cables, getting the gold connector types are a joke. You ain't gonna hear it. Same for the digital HDMI cables with gold connectors...they aren't real gold to begin with, and even if they were you aren't going to notice the difference. The extra money you save, spend on decent speakers and a center speaker. With a half way quality theater amp of 70 watts a channel, the speakers make all the difference in the world. And Ohh... power filters for your components..... B.S. The transformer converting the AC to DC for all of the circuitry along with filtering capacitors take care of all of the filtering you need.
Especially if your over the age of 10. The human ear Deteriorates as we age, loosing effective hearing from 20,000 Hz (the top of the range down to 1000 Hz, every day of your life. So spending extra money on expensive cables won't do a thing. For speakers, get some standard copper 18g - 16g wire, and be done with it. For component RCA plug cables, getting the gold connector types are a joke. You ain't gonna hear it. Same for the digital HDMI cables with gold connectors...they aren't real gold to begin with, and even if they were you aren't going to notice the difference. The extra money you save, spend on decent speakers and a center speaker. With a half way quality theater amp of 70 watts a channel, the speakers make all the difference in the world. And Ohh... power filters for your components..... B.S. The transformer converting the AC to DC for all of the circuitry along with filtering capacitors take care of all of the filtering you need.