Considering switching to XLR cables,

The morgami platnum are heaver gauge.excellent quality.xlr will give you a 6 db increase in sound level .has 3 wires and does not use the shield as ground like rca. Make sure the xlr are 3 wire .my mcintosh are cardus star 4 wire as the use the 4th wire to ground only source to lower floor noise.another great of xlr is long runs don't cause much voltage drop as rca does. So you can run xlr long to a monoblock amp near your speaker then short speaker cables helping sound quality. Resistances increase over length of wire but more effect ins heard in long runs of speaker wire.i am a believer in thick gauge wire. I like it so much I don't buy anything without balanced xlr. Enjoy the search.