for christmas im getting my dad an outdoor speaker system buttheunder groung wire costs ALOT so i was wondering if regular speaker wire will work fine if i used it and burried?
Regular speaker wire will work for a short time, but the insulation is not designed to be used underground. It will deteriorate and short out. Your other option is to use conduit, but that will probably be more expensive that the underground wire. Wire for low voltage lights will work, but the gauge is fairly small, so not much power can me pushed through the wire. There is voltage present in speaker lines, about 32-40v
You could run the regular wire inside 1/2 PVC pipe or garden hose when burying it. Just make sure you seal off the ends really good or knock a hole in the walls and bring it through the walls.
It will work and you probably will have no problems as long is the wire is 18ga or better. Underground cable will last longer but I have seen regular wire last over 10 years. If someone say's that 18ga is to small then why do they put it in the higher end speakers but if you are running over a 100' i would go with 16ga.
Yes but I would purchase some kind of insulation to protect it
