furutech fi-11 vs fi-15 rhodium

Whit the same wire, anyone have did a/b comparaison? Will i expect a difference in sound quality? Im searching for the quieter backgroud as possible whit neutral tonality. I project to use one of these connectors whit furuech bulk ac wire (14 and 15 gauge)...application will be for my dac, preamp and the last for my power distributor(8 gauge).
I asked pretty much the same question to Vh Audio and I was told the Furutech was sweeter and the Rhodium was more neutral..Same quality only tone difference....