Groneberg cable good?


I am using my 1990's audio quest Quartz and topaz cables still. 

Would new new groneberg quattro ref rca's be noticeable sound improvement. There over 200 bucks with the wet connectors.  Or stick with th audio quest Quartz cables. ?
128x128arcticdeth
I use them exclusively in my 2 systems.  There is better, but you have to spend way more money.  What are the wet connectors?