I'd go with the Signal Cable "Silver Resolution." Much better than their cheaper stuff but still very reasonable. My brother uses it tri-wired between Mac 501s and Mac XRT28's with great results. I still use a pair that have gone through a couple different systems, again always with great results.
7 responses Add your response
With a run of that length you'll want to be careful with respect to gauge selection, particularly for the low-frequency cable in your bi-wire arrangement.
The 805s spec sheet recommends a maximum cable resistance of 0.1 ohms (which I think is probably a good target value for most speakers). I assume they are talking about one-way resistance, which would mean 0.2 ohms for the round-trip through both conductors of each of the two bi-wire cables.
Here's a link to a wire gauge/resistance table:
A quick calculation from the table shows that you'll want to go no thinner than 16 gauge, and 14 or perhaps even 12 would be preferable.
Disclaimer: I am the owner of PNF Audio.
We make custom length speaker runs and you get your choice of color and termination.
We won Absolute Sound Magazine's Editors Choice Award in 2007 and 2008. They said that we make one of "the BEST reasonably priced cables on the market"
A 25 ft run will put you way under $1000 (near half).