One word to explain - "Kiasu" 😁
Some say better , some say the same
My personal opinion - it makes me NOT to worry to Y cable or not to Y cable and subconsciously telling myself sounds better because spent more money compared to a single cable. Hehe
My 2 cents - borrow a Y cable from your friend and if it works for u , invest in a Y cable . If not , u save some money for other upgrades . One less thing to worry about... Again if it does sound better , is very minimal that u can live with your existing single cable.
If your interest is to make your sound better , would recommend the below first before jumping into upgrading
-> check your position of speakers , setup with amp if really correct and room acoustics (kopi table blocking speakers? Sofa too close to speaker etc? ) I had friends who change systema like crazy and realized the problem was the room and Power as she stayed near factories in USJ. Bought a power regulator and organized her living room made him love her system again .
I'll keep the Y cable in mind. Funny you should mention the coffee table coz my back speakers are underneath it. Had to put them there as not to annoy Home Minister