Uneven speaker wire runs


My equipment sits to the far right side of my home theater setup. I need at least a 21 ft. run to the left speaker and the right would only need about 10 ft. Does it matter if the L & R main speaker runs are different lengths or should I try to keep them the same ?
gfloyd757
Carl, do the math. Even at the slow 160000km/hour speed of lightening, one wouldn't detect the difference in arrival (or delay) between 1000ft and 10 ft cable. Don't you just love mixing units of measure?!!
Ozzy is right, if it is for home theater you probably would not notice the tonal balance difference. Plus you could set up your pre/pro to compensate if you heard a difference. In a good two channel setup you can hear it. Especially in the vocals. Good thing that most of the vocals will come from the center channel of your HT.
Thanks for the input. I remeasured and can get by with an 18 ft. run so I decided keep the L/R mains the same. I found a chart on the Revel speaker website and this length should be fine with 11 AWG wire. Their chart gives a max length for each size wire to maintain a loop resistance of .07 ohms or less. My B&W owners manual recommends a max cable impedence of .1 ohms so I should be well within these parameters.
I can't find much info on the wire I am going to use (ViaBlue SC-4) but I was looking for a wire that addresses both high and low frequency issues for a bi-wire configuration. According to what info I have found this silver/copper hybrid should work well for my home theater setup. I also found a website that will give me a very great deal on the wire.