Speaker cable for 25 foot run

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:

http://en.wikipedia.org/wiki/American_wire_gauge

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.

Regards,
-- Al

Disclaimer: I am the owner of PNF Audio.

www.pnfaudio.com

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).

steve@pnfaudio.com

Check out Blue Jeans Cable. Quality products for long runs that wont break the bank.

http://www.bluejeanscable.com/store/speaker/index.htm

I always thought size matters with thickness of cables and through experimentation I could not tell a difference.
Try the Morrow cables with 60 return policy. Nothing to lose but maybe a nominal shipping fee... But the experience will be well worth it in the end.