Amplification could be one of the issues.What are they connected to?
How high are the ceilings? That will also have an impact.
With the cut out size these should be a very good speaker, unless someone cheaped out and put the Pro 65 or 80's in which are really a background speaker.

Have to remember that people typically are not looking to play in ceiling speakers loud, but you still need good amplification to get good sound at lower levels.