audio quality

I want to purchase a balanced cable for my speakers - Hivi D1200 and Headphones Hifiman Sundara, but I have very less knowledge about the cables and their outputs. Speakers - Currently my speakers are connected to the ZEN DAC V2 and the connection goes like this: ZenDAC V2 (6.3mm to 3.5mm...

I was not sure which section of the Forum to post this topic on but here goes.... Is upgrading Hi-Fi equipment a dance of diminishing returns? By this I mean to realize a better sound, for say your vinyl then a decent amp and speakers are vital, but then there's the room; is it configured for...