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55 Foot Speaker Cable Run

I will need a 55 foot run of speaker cable for each of my rear channels in my home theater setup. I can get 12 gauge speaker wire at Home Depot, and I know of another source for 10 gauge wire on the web for 80 cents a foot.

Will the heavier gauge be better for a run of this length?

I will run large 4 ohm speakers (Infinity Kappa 9) full range on the large setting for the rear surround. They will be powered by amps that are rated at 900 wpc at 4 ohms (Carver Silver 9t monoblocs). Banana plugs on all terminations.

Processor will be a Sunfire Theater Grand II.

thanks....mitch
128x128mitch4t
meisterkleef
146 posts
 
Gotta agree with TVad. I have 4 30ft runs of the Canare 4S11 (biamped) and it works great.

The issue is resistance. Roger Russel has an excellent rule-of-thumb for required gauge/resistance in speaker cables depending upon run and load:

http://www.roger-russell.com/wire/wire.htm#wiretable
xti16
1,525 posts
 
What are the main primary speaker cable lengths? I just added a REL B3 to my system and it came with a 35' cable. My main speakers have 10' cables. I could hear a severe timing problem with the 'bass'. Cutting the cable down to 15' corrected that. I remember years ago never exceed 50% of the cable length for whats existing or it becomes audible. I'm glad that memory cell is still alive.
mitch4t's avatar
mitch4t OP
1,611 posts
 
The primary cable speaker lenghths are 6 feet long to the amp and 12 foot interconnects to the preamp.
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