Double up on Kimber Kable 4TC??


My old setup required extra-long runs of speaker cable (Kimber 4TC). My new setup allows for much shorter runs between electronics and speakers, so I cut the long runs in half. Can I use two sets of this cable on top and bottom?
Actually, I'm already doing it (4 cables per speaker: biwired with two pair on each set of binding posts). Although the sound is, IMHO, great, I was wondering if utilizing this method is a mistake due to some specific reasons that only you truly informed audiophiles would know about!

Your advice.

Thanks.
2chnlben
HDM,

Thanks for your impression of the difference between 4tc and 8tc. As to the gauge of two 4tc I am baffled. On one hand, if the wires are the same, two 4tc should equal one 8tc. On the other hand, two 13 gauge wires equal a 10 gauge wire and not a nine gauge.
behnegan, if you do some experimenting with double runs of 4tc please let me know what you find. I may want to "untwist" my pairs, but I don't want to have to disconnect and resolder the ends if the results are minimal.

Interesting points raised and good input. Thanks to all.
2chnlben,

I did get a chance to do some experiments. First, I doubled up my 4tc and kept the + and - cable five inches apart. It was a major improvement over a single run, better bass and no bad side effects. After several weeks, I felt that perhaps there was a bit of whiteness ( I cannot describe it better) in the upper frequencies so I put the + and - length together in a loose spiral. This further improved the base and the whiteness disappeared but perhaps there was tiny amount of less detail in upper frequencies. Now, this second arrangment is not the same as yours, but I suspect they are close. So based on my experience I would say that you should keep your arrangment. You should try to separate your runs only if you think that your base is too heavy. I should also say there was a big change going from 1 4tc to 2, but only a very minor change going from seperated runs to the spiral. One last note my system is bit light on bass so I cannot say which of the two arrangments are more neutral
Thanks for your input behnegan@bc.edu. I too feel that I am getting good performance by doubling up on 4tc. I definitely like the sound better than single runs of 4tc.
Now I'm looking for some good interconnects ($300/less/1-meter pair/RCA). Any thoughts?

Thanks
So what is the correct way to "double up" a cable for biwiring? Do you run both positives down one run of 4tc and the both negatives down a second run of 4tc, or do you run positive & negative for the woofer down one run of 4tc, and positive & negative down for the tweeter down the second run of 4tc?