Most common subwoofer input?


I just bought a new house and I plan the build a 5.1 system in my family room. When I talk to my builder today, he suggests me to build a in-wall stereo cable for my rear speakers and subwoofer, so there will be no cable running around my family room. I know that rear speakers use normal speaker cable, however subwoofer have so many different type of input, such as: RCA, speaker wire, phono input or Neutrik Speakon. Which type of input is most common use for sub?
thx.
audiorichard
Before I bought a house, I rent a small room and use my stereo system to listen music ONLY. In my new house, I plan to use my system to listen music and watch movie (50/50). I heard that if I want to use sub to listen music, high-level input is better than RCA; RCA input is good for movie, is it true? should I build both RCA and speaker cable for different purpose?
Please advise.
thank you very much!!
No, I wouldn't build RCA and speaker cable for each purpose. Use one or the other. I doubt very much you would even hear a difference between the two connections, I wouldn't stress yourself out too much. To make it simple just run 1 RCA behind the wall or through the floor joists and you are done.
Great! thanks for answer!! I will ask builder to run 1 RCA behind the wall.
Thank you for anyone who answered my question!
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Well, you might have already run the RCA, but as a retired Electrician, I think I would have just run some PVC or flex under the floor and up the wall, to give myself options. You would have the flexibility to change your mind and/or equipment, and if you'd need to pull something else through the conduit, you could do it later.

Good luck with it and have fun.