Why do you think Bi-Wiring improves the sound ?

I think there are potential downsides of biwiring. The speaker designer (assuming they are competent) went to great pains to develop a crossover that effectively splits the signal between drivers, assuming the SAME SIGNAL on the inputs to the two parts of the crossover. Anything that might result in a different signal on the two input connections is going to defeat this design effort. 

Now, I suppose, if you prefer the sound from two separate connections to the speaker, then that's really all that counts. But if you are asking a theoretical question, I'd stick with a single connection to the speaker unless it was specific engineered to use an active crossover with biamping.

@bigkidz   Peter external shotgun biwire AQ Type 6 headed your way :-) I am guessing Tuesday you should have them to listen to :-))))) music is the gig - have fun

@gasboses 
Blue and chrome go together - 'chrome to get you home!'

I think it depends on speakers ... I have had Quad Kef, Falcon LS3, PMC and now Tannoy. 

The biggest difference is the Tannoy speakers where it was immediately clear almost like jumping up a model. On the rest it has been marginal and sometimes pretending to yourself it made a huge difference. 
So borrow some wire - try and then decide.

Out of interest my Harbeths had one terminal as it is something the designer thought worked and there was definitely a fashion for biwire speakers at one point that wasnt always sonically warranted except buyers demanded it and manufacturers supplied ....

I have Larsen 6.2s run with an Exogal power DAC, Comet and Ion. I hear absolutely no difference between bi-wire and single speaker cable, and in fact one reviewer of the speakers said his sounded better with the single wire. I did keep the bi-wires on, just in case....