Hi. I have an old lg Ht503TH home theater that doesn't have an HDMI input. It can be found here: https://www.productfrom.com/product/152319-lg-home-theater-ht503th/ The Apple TV 4 doesn't have an optical out and my guess is the next generation of videogame consoles won't either. So I could go by using and optical audio extractor but I suppose is a small and temporary fix. So I started checking for a new receiver and I was hoping I could use the existing speakers while I replace them one by one. They use speaker wire and are 4 ohms and new receivers usually come prepared for 6 and 8 ohms. The sobwoofer is not powered either so I would need a separate amplifier. Then I saw there are a few Onkyo receivers that come with a set of speakers and subwoofer for a reasonable price that I could use for a while and then I could replace them. Like this one: https://www.amazon.com.mx/Onkyo-HT-...&qid=1483637509&sr=1-2-catcorr&keywords=onkyo So my question is: Are those speakers good quality even if the have something like 2 speakers per box? The ones in my Lg have 4 speakers per tower and sound considerably good, packing a lot of punch and presence even without taking the subwoofer into account. I'm sure lots of speakers should sound noticeably better, crystal clear. Like my B&W headphones. My question is: would it feel and sound like a downgrade? Would the sound field be affected? Is the quality enough to justify the change in size and number of speakers per box?