Longest Advisable Speaker Cable Runs?

Bent Audio's website is
http://www.bentaudio.com/index2.html
There are two different configurations. I am familiar with the stepped attenuator remotes. I have them in two of my preamps. His configuration is very transparent for a remote volume control. John is a class act and would be more than willing to help you.

I'll look into both those options. The Bent Audio Attenuator may be a bit to ambitious-I'm not much of a DIYer but I'll check it out. I'll also look to Sjogn for a Supra Cable recommendation and price quote. You guys are awesome. Thanks for all the help.
Dave

Tony (Clio09), it looks like the shielded Ply S3.4 is currently $36/meter/pair, rather than $26.

Dave, if you go with a shielded cable, such as that one, you'll have to determine a circuit ground point on the amp to connect the shield (the "drain wire") to. Since your amp is described as having bridged outputs, the negative (black) output terminal carries a signal, rather than being ground.

Regards,
-- Al

Thanks for the correction Al. Need to use the calculator next time. Still quite reasonable for such a long run.

20Ft should me the max.