I have a different opinion than Mrfastguy. (Isn't this hobby great!)
I have used the BiFocal XL for a couple of years. The cable is neutral on the base end. I could easily hear the difference in base when I changed power amps. Tremendous punch, very fast and tight. However, if you are trying to help create a base sound in a slightly light system these cables won't help you, in my opinion.
I have used the BiFocal XL for a couple of years. The cable is neutral on the base end. I could easily hear the difference in base when I changed power amps. Tremendous punch, very fast and tight. However, if you are trying to help create a base sound in a slightly light system these cables won't help you, in my opinion.