I have been asked to mount a set of speakers to a wall. Where they
will be positioned I am told they can not be mounted to a stud. But
the downside is the wall is plaster and lathe.

The speakers weigh 15 lbs. each. My question can these be mounted?

I have already been told, no shelf system or floor standing. Here is a
link I was given to what would be used:
http://www.vanns.com/shop/servlet/it...ures/750059078

Thanks,

Bill