Small control room in Oslo.

First of all thank you for the wonderful resource this site is. I hope I can get some of you brilliant minds to take a quick look at my "design" and give me some pointers on how to improve it. I am building a control room in a small room. There are no noise regulations or neighbors so there is no need for any isolation to other rooms. I can not do any structural changes so everything I do has to be put "on top" of the existing room and structure. It is a mix room and there will be no recording done there. I mix at relatively low levels and speakers will be Neumann KH120. The room will be used for mixing everything from remote recordings, classical, rock and sound design for picture. I am using Rockwool Acoustic Plates / Rockofon Industrial for my broadband traps. They are 1200mm x 600mm and in 100mm and 50 mm thickness. They are 60 Kg/m3 Traps with 100mm Rockwool are designed with a 50mm airgap and traps with 50mm Rockwool has a 25 mm airgap. The two 1200mm x 600mm traps in the middle of the backwall are only temporary and will be moved in when there is critical work being done. All broadband traps are 1200mm x 600mm except "early refelctions trap mixpostion left" which is 1200mm x 1200m The "traps" on the floor mixposition left and right are custom made from Ikea Billy shelfs I have laying around. This way I can use parts of them as storage for printer and hardrives and so on. The "traps/superchunks" in the ceiling mixposition left and right are the same 1200mm 600mm Rockwool plates cut in 4. ( 60 Kg/m3 ) There is a large bookshelf in the back. I can use the corner as an absorber as shown in one of the pictures but the rest of the shelf is needed for storage. Room measurements are 3,29 m long wall 2,25 m short wall 2,61 m height 10,79 feet long wall 7,38 feet short wall 8,56 feet height There are three doors as shown in picture labeled "empty room" I am looking for pointers on how to improve the treatment of this room because i have little to no experience myself. Things that would be nice to know : How will this room sound? :) Should i put in more traps or absorption ? if so where? Should i put Slabs on some of the traps? if so where? Is there to much HF absorption? Any comments on my choice of thickness on the different traps? is 50mm with 25 mm airgap enough for " early reflections side traps" Do I need more traps on the backwall? Do I need to angle the cloud or could it just be parallel to the celling? it is now 5 degrees. Is it better the use other insulation than the Rockwool Acoustic Plates (60Kg/m3) for the ceiling/sidewall "superchunk"? 100mm plates are for demostration purposes red and 50mm are blue in some of the pictures. Yellow is cloth fabric with insulation laying inside of it. The available room behind the 6 traps in front will be filled with low density cheap insulation. The desk is homemade and is a steelgrid with legs. Any and all ideas about the layout and design would be greatly appreciated :)

welcome! looks like a good plan. how will it sound? objectively? it should read out (using REW or fuzzmeasure) OK or need some tweaks but your low level monitoring should work. subjectively? slightly on the dead side and depending on your stand up absorbers in the back, you could have some "cavity resonances" from the pockets of room behind them - best bet - go ahead and build it. see how it works in terms of getting mixes which translate well. adjust as needed.

gullfo wrote:

welcome! looks like a good plan. how will it sound? objectively? it should read out (using REW or fuzzmeasure) OK or need some tweaks but your low level monitoring should work. subjectively? slightly on the dead side and depending on your stand up absorbers in the back, you could have some "cavity resonances" from the pockets of room behind them - best bet - go ahead and build it. see how it works in terms of getting mixes which translate well. adjust as needed.

Thank you Glenn! I appreciate your advice. That is a good point about the "cavity resonances". I have changed my plans so I will make 4 temporary absorbers for the back wall instead of 2. I also added a second fixed trap in the back wall right corner. :)

Any more comments or suggestions before I start building? :D