Reddit mentions of Sony STRDH590 5.2 multi-channel 4k HDR AV Receiver with Bluetooth with 16-Gauge Speaker Wire - 100 Feet and Banana Plugs - 6 pairs

That's a 5.1 setup, the receiver outputs a coaxial digital RCA plug directly to the subwoofer, so you just put the sub right next to the receiver. thats the ".1" part. you also buy a bunch of "bannana plugs" to make 5 cables that go from the positive and negative of each of the 5 outputs of the receiver to each pair of outputs on the wall. without more info, I'd just say buy this, it comes with the wire, plugs, and receiver. if you can tell us more about what size room, and what kind of speakers you have (you'll need to use a bent paperclip stuck through the holes in the grill to pull the metal grills off the speakers, don't worry, you won't hurt them) I might tell you to get a better quality system so you aren't wasting time with a low powered receiver, but honestly, if you don't know, you will never notice a difference and that's beautiful! you will only use 10 of the 12 included bannana plugs, and only for the wall, the rest of the connections will be direct stripped wire into the receiver. this willt ake some wire stripers and practice if you've never done it, watch a youtube video about it.

https://www.amazon.com/Sony-STRDH590-multi-channel-Receiver-Bluetooth/dp/B07JGFM616/ref=pd_cp_23_2/132-0038274-5893769?_encoding=UTF8&pd_rd_i=B078WG7HZY&pd_rd_r=b86f913a-17f2-4ede-94aa-d70bda909e11&pd_rd_w=XoV6b&pd_rd_wg=scFt2&pf_rd_p=0e5324e1-c848-4872-bbd5-5be6baedf80e&pf_rd_r=HCY5TKVSNZXK4D54KN61&refRID=HCY5TKVSNZXK4D54KN61&th=1

Then, you'll need a subwoofer to go with this, and same story, without knowing more I'm gonna tell you to buy this, because it's the best price, and you won't notice a difference until you have a second sub to check the quality against. If all of your speakers are mounted on the ceiling, I'd say just buy one sub, but if they are mounted like, 8 feet apart on the wall, with the TV centered between them, and you have space on the floor, you could buy two and place each one under the right and left front speakers. Not necessary and people will jump in and say "But subwoofers are non directionsallll" bullshit. 2 subs sounds better than 1 in most rooms for reasons I don't want to explain right now, but it's only an extra $80, and you just bought a house. Treat yo self. But then again, maybe just buy one, and later, upgrade the receiver to a $400-600 version with higher wattage output and a better sub for like $400. no need to clutter your space when something is better than nothing. https://www.amazon.com/Sony-SACS9-10-Inch-Active-Subwoofer/dp/B00O8YLIY6/ref=sr_1_5?keywords=subwoofer&qid=1575001825&s=electronics&smid=ATVPDKIKX0DER&sr=1-5

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you will also need a cable to hook the sub to the receiver. buy the shortest length you need just for cost and saving the uglyness of extra wires laying all around the place. https://www.amazon.com/dp/B01D5H8UTW/ref=twister_B01LYNSL5S?_encoding=UTF8&psc=1