I've once tested my biwire Analysis Plus cables in a configuration where I've connected both HF and LF spades together to a single binding post on the speaker side, and use jumper wires from HF to LF. I couldn't tell any difference between that and the proper biwire setup. I did hear differences when I went from Analysis Plus to Cardas to Kimber. But not when I used the biwire cables in such configuration.
