Longest Advisable Speaker Cable Runs?


I've always heard 8-10' is ideal.
I'd like to move my gear rack to the side of my listening room-I've seen this done in the Virtual Systems section with what must have been some pretty long runs of Speaker Cable. I would probably need 30 feet to the furthest speaker.
My amp is low watt-around 10 per channel SO that could effect cable run length?
Any help is appreciated.
128x128dpgdave
If you don't mind your integrated between your speakers, you may want to compare the cost of installing a "Bent Audio" remote volume control to the cost of longer speaker runs that will be necessary.
I think Al has summed it up best in his last post. Regarding the Supra cables I believe the ones I used were the Classic series, although I don't recall exactly. Yes the shielding helps but the other parameters Al mentioned are more important. As for OCOS, they market themselves as the cable to use for long runs. I don't exactly get why from technical perspective, but I know it has something to do with their zobel networks that are available for use with the cables. There is a review on this in 6moons if you want to read up on it. I do not use the zobels with mine, but they may be beneficial with solid state gear.
Ok that's some great info. I'll look around for shielded Low & capacitance, but not extremely low. I'll also check for ratings less than or around 150 pf. I bet that will help other members in the future as they reference the blogs.
I looked at the Supra cable site and found that they're out of Sweden. That means big $$$ to me. OCOS site indicates Sumiko ownership --> $$$... Both are probably great products but do any inexpensive to mid-price cables come to mind? Such long runs are going to add up quickly on a per ft. basis.

As for the Bent Audio volume control, hat could be a fix for me so I'll check it out. I'd like to keep the system as simple as I can though. Could you post a link Byfo? I wasn't sure if Google took me to the right place.

Thanks to all,
For Supra cables if you are in the US give these guys a call:

Sjofn HiFi

If you click the link you will see that these cables are not that expensive. The set I bought was $26/meter per pair (S/Ply 3.4) but for $12/meter per pair you can get the Classic 2.5 that are also very good. You need about 9m so if you go with the Ply 3.4 it would be about $250/pair and if you go with the Classic 2.5 just over $100.

As for OCOS, Dynaudio now represents them and you can call the directly for pricing. Yes they will be pricier, but again you can look for them used.

I guess another low cost alternative could be Blue Jeans cable. Many here on the forum seem to like that company.
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.