Just got a 540 wat sound system but the speaker wires are only 5 feet, so I want to add about another 10 or 15 feet.
Just go down to Radio Shack or some other consumer electronics store or even a Home Depot, etc. and get a roll of bulk 14 gauge speaker cable. It's usually only about 25? per foot and you will have plenty of wire to work with for your entire system. I recommend against splicing speaker wire because not only does it hinder sound quality, but if you don't do it properly you could end up damaging your speakers and/or your receiver. H a p p y H o m e T h e a t e r i n g !
It is an easy fix. Get the same kind of wire that you now have. I live in Sacramento...I believe Home Depot or other similar stores may carry that wire. Cut the existing wire, peel back the covering, and expose each wire...at both ends of the cut. Do the same for the new wire extension. Strip each of all wires about one half inch. Connect each wire...you can solder, use a crimp, heat shrink, or just simply tape. It's not a big deal. When all the wires are connected, tape them all together so it looks neat!!!.
The best way is to solder then. Other than that just buy wire nuts.
The tape won't make a good sufficient - stable connection. A unfastened connection gets very heat. #4 can carry quite some amperage. acquire some copper - chop up bolt - kearney connectors, which would be put in with 2 wrenches, it could have a divider interior the middle so each cord would be clamped in my view, (might desire to be tight) and wrap a minimum of three wraps of a good grade of electric powered tape - a brilliant ironmongery shop can help you.
Any half decent system the speaker wires should not be hard wired so just replace them. To splice the wires , twist the corresponding wire together, solder and then insulate with good electrical tape or heat shrink. Still better to replace all the speaker wire. For a 540 watt system use 14 or 12 gauge wire and proper ends ( pin , banana or lug) which ever your amp and speakers require, not just twisted wire. For this gauge of wire too much of a chance of a short, if not now , in the future.
