Dennis and Ted,
Thank you so much! I am leaning toward Clips, (2) 5/8 on each side for mass, green glue or Supress\QuietRock for daming, and bats for walls. IF I have a similar assemly for ceiling (clips, (2) 5/8 with GG, bats), do I need to have a drop ceiling or can we treat the cuts for HVAC and lights (seal) and bypass the drop ceiling?
This is an industrial unit with 22' walls, 8" concrete block between us and neighbours and nothing above or below us. So we are free to do it right from the get-go. Obviously, budgets are tight but do not want to sacrifice quality if it can be achieved in a cost-effective manner.
We actually hired an accoustical consultant. Their report indicates that if we build to their specs, we'll get an STC of 53, which I thought was strange. Hence my research.
Thanks again, do appreciate your comments!