A newbie to the world of Klipsch, but love the sound. My question is: Is it worth it to upgrade from the KG 4.2 to the KG 5.2? I currently have a pair of 4.2's that I PICKED up for $40. I love the sound but want to know if the 5.2 adds anything noticeable. They are slightly more efficient, and go slightly deeper, but do take up more space. (I live in an apartment and space is an issue.) As most people here, I would love a pair from the Heritage line, but money and space are prohibitive. Sent from my LM-V405 using Tapatalk