I tried this myself to see what the results would be. My connections are a bit different, but electrically the same. I am using a Parasound HCA 3500 for the amplifier. This amp has two sets of binding posts per channel so if you want to do true bi-wire you just hook up twice as many cables. In my case I tried this in the "standard" true bi-wire configuration. As expected the soundstage got bigger, the highs were more noticeable and airy etc etc. What came along with this change though was a noticeable reduction in bass...the drivers in the speaker seemed almost out of balance. I then tried taking the following: midbass + to midbass + midbass - to tweeter -, tweeter + to tweeter + and tweeter - to midbass - . This arrangement brought the bass back to the speaker immediately. There is now improved clarity, but without the sacrifice of bass reduction. This experiment was done on Joseph Audio RM7xl's which come with the standard gold plated brass jumpers. I am now runnining Kimber 8tc (white and clear) in true bi-wire set up with the diagonal or cross swapping of the negative leads. Because my amplifier already essentially has jumpers built into it with the two sets of binding posts per channel, there is no need for a speaker jumper as described in Nordost's suggestion.
biwire trick
Some of you seasoned vets may have heard of this, but I had never thought about it. Researching jumpers led me to Music direct's website, where in the description of some Nordost jumpers it read to try switching one lead from both mid and tweet. IOW take the positive lead from the tweeter and swap it with the pos lead from the mid.
I have a true biwire setup (separate runs for mid and tweet), don't know if this makes a diff, but the sound definitely improved: fuller, more natural, larger stage. try it as one of the easiest, free tweaks to do. You may be surprised.
I have a true biwire setup (separate runs for mid and tweet), don't know if this makes a diff, but the sound definitely improved: fuller, more natural, larger stage. try it as one of the easiest, free tweaks to do. You may be surprised.