Silencer design - for maximum ceiling height

I'm just wondering if someone would double check my dimensions and overall design. I had to plan for as short of a silencer as possible to maximize my ceiling height. The silencers will be suspended from the existing ceiling and above the studio ceiling (decoupled, in the "spring / air" space of the M/S/M ceiling assembly). I'm just looking for verification before I present these to my HVAC designer to incorporate them into our overall design (which I will then post here). Here are dimensions for the 3 duct sizes I've designed for: 6" round inlet (29 sq. in.): 47"L x 29.5"W x 12.5"H with 10" x 6" outlet (60 sq. in.) 8" round inlet (51 sq. in.): 59"L x 37.5"W x 14.5"H with 14" x 8" outlet (112 sq. in.) 10" round inlet (79 sq. in.): 71"W x 45.5"W x 16.5"H with 16" x 10" outlet (160 sq. in.) The studio is in commercial space and will encompass about 1000 square feet between the control room, live room, vocal booth, and 2 sound locks. Just to give you a general idea of the size of the build. Thanks!

you should use a panel inside the panels to ensure they stay in place. consider using duct liner (the type with the coating to bind the fibers) instead of plain fiberglass. this will avoid particles of fiberglass from being blown out of the unit into the room or sucked into the air handler.

I'm definitely going to build the inner baffles to be structural, then line them with insulation. Great idea with the duct liner vs. fiberglass! This project is on a budget where ideas that are better for the long term are considered necessary. Exactly the advice I was looking for. I can't wait to get a full discussion going about this project. Thanks!