I found this thread,and I always found this idea of doubling cables,either speaker or RCA intriguing. I just swapped out a pair of Analysis Plus Oval 9’s out of my secondary system. I’m running the same cable in my listening room. So,why not experiment. Luckily,one set are spades,the other bananas,so this made this even easier.
The first thing I noticed,is a little more weight in the music. I haven’t decided if it is better,but it’s definitely a difference. I’ll let these stay in place for a while,and see what transpires.