Previously had 5 cheap chinch cable in succession put ... now reaches one .. Improvement in sound is of course Off course. Especially before 1.5mm² were relocated and now this fat thing is used. Rubber smell something, but is not disturbing. After unpacking the smell of new plastic / rubber disappears relatively quickly. Installation is also possible with smaller radii, as cable is very flexible despite its thickness. The valent RCA connectors are very firm on the Sub / AVR. Because you can be sure that's ruled a loose contact or accidental removal.