Quote:
Originally Posted by
theblackkeys 
I have a Sony SAVS150H speaker system and just moved into a house where the previous owner had the basement wired for surround sound but never installed one. There are 4 speaker plates (2 front, 2 rear) with the speaker wire coming though. My question is how would I mount my speakers since there is just wall plates up? Also I cant replace the wall plate with just a mount as you can see with the pictures below. Can anyone help?
I was thinking this may solve my issues
http://www.bracketsandstands.com/AM_...lash-plate.htm
If the threads match, this mount could be a good fit.
I don't what these speakers weigh and surprisingly Sony's web site didn't seem to know they exist.
I wouldn't put too much of a load (not more than a few pounds) on an existing wall plate depending on what it is and how its mounted. Its support could be pretty flimsy, or not. It might be a flimsly ring that barely supports the place, or it might be a plastic box just barely hanging in place or securely nailed, or it could be a steel box nailed to a stud with big nails. If its the latter, then you've got something that will go a long ways. If you have the ring, then it may need some reinforcement.
I'd definitely check it out before ordering parts. If it lacks, mounting objects on dry wall is a well-supported project, and your local home improvement store can help you with some inexpensive upgrades.