[InstallNick]

Hey Guys, I am new here but not very new to audio. However I have never used or known anyone to use a sub riser however they seem pretty common here. What are they really used for and how great is the effect? I have two Klipsch Sub-12's (downfire rear port)

 

[Mike P.]

Welcome Nick! A sub risers purpose is to prevent sound from transmitting through your subwoofer to surrounding surfaces. A more in depth explanation can be found here:

http://www.auralex.com/sound_isolation_subdude/subdude.asp

 

[Kal Rubinson]

This one does more: http://www.asc-home-theater.com/subtrap.htm