someone recommend the optical cables so i made the purchase and it was worth it. connected from my smart TV to my surround sound receiver works great. Should have brought two of them!
I connected these from dvd and ps3 to my surround sound and can tell a little difference in sound quality. I have a broader range of frequencies now. It doesn't make the audio any faster or louder, just a little clearer and higher and lower frequencies through. And at the price here they were cheaper than a/v cables. Great value overall.
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