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

Showing 3 responses by audiorichard

Thx for the suggestion!!!

Just want to make sure, I just NEED ONE RCA input (not a pair) right?
(amp -> RCA cable -> into one side of wall input -> output from wall -> RCA cable -> sub)

But I am wondering, if I don't have a receiver, and I only
have a stereo amp, can I still use RCA for my subwoofer?

Thanks!!!!!!!!!!
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!!
Great! thanks for answer!! I will ask builder to run 1 RCA behind the wall.
Thank you for anyone who answered my question!