Best low cost speaker cables for my system?

Great choice of components. I really like your system. IMHO you might consider to devote the money to a beefier amp with higher damping factor and just go for ordinary speaker cables (wire from the hardware store) ... your speakers can probably handle at least 200 Watts. More headroom and damping is likely to give you an audible improvement. ( I am assuming that your budget is around $1000 which is enough to do an amp upgrade)

Tvad's suggestion of Canare cabling is right on the money and a perfect example of what i was talking about. That is, it is a 4 x 14 gauge spiral wrapped star quad design. You can also find other similar products at Parts Express for slightly less money. Sean
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Sean,
Your remarks are way over my head, unfortunately. The DH Labs Q10 uses a pair of 12 guage wire and a pair of 14 guage wire within one jacket. I don't know how this compares with your suggestion of 4X14 guage "spiral wrapped star quad design".
Tvad: thanks for once again offering suggestions for my system. I will look into the Canare cabling you suggest.

Stu,

If you look into Canare 4s11 you'll be looking into a star quad design. 4x14 refers to 4 conductors at 14 gauge each.

The benefit of the 4x14 (or even the 2x12/2x14) is that for long runs, you can twist together two of the four leads for a combined gauge of 11...hence the 4S11 designation. Twisting together a 12 gauge and 14 gauge lead on the DH Labs Q10 would result in a larger gauge than 11, but I don't know what the gauge would be.