Studio Design Antwerp, Belgium

Hello everybody, I'm new here and would like to start with thanking everybody (and mr. Sayer in particular) for all the information and inspiration provided here. I'm currently working on a studio design in the city of Antwerp, Belgium for a friend of mine. It's in the city area, in a crowded street so one of the main concerns is absorption. He's planning to use the studio for his own band (rock-pretty loud) as a start but would like to welcome other bands to once he has finished his sound engineering course so it should be suited for all kinds off sound. The studio will be set in the garage on the street level of the building. It's a very (very) sturdy construction in full concrete with a garage door to the street and a door leading up to his house. The control room will be set in the rear part of the garage on a raised floor. Which is (almost) a floating floor (lucky us). This part we'll make completely floating by lifting the floor and adding neoprene pads under the construction and insulating the underside in between the beams. The live room will be set straight on the concret floor. There are two big beams running across the room. The first one will be between the live room and ctrl room, the second one will be running right across the ctrl room. This last one we will cover completely in 50 mm insulation (is not drawn yet but will do). For the studio design I used as much of the know-how available on this forum (read: I stole pretty much anything I could get my hands on, sorry for that :wink: ) control room: tried to keep the room as symmetrical as possible. Implemented the speaker elements (filled with insulation on top and with bass traps underneath), implemented helmholtz resonators by the sides and bass traps in the back. I made a few designs but think/hope this is the way to go. live room: tried to extend the shape as for as I could for maximum space. implemented helmholtz resonator on one side and panel absorbers on the other side. all sizes can be checked on the drawings. insulation: for the walls running along the thick concrete wall I used John's reverse wall system so it would act as a doubble leaf system with the wall. build up(inside-outside): 70mm insulation in betweem 76*32mm timberframe - 2*16mm plasterboard - 50 mm insulation for the parts not running along the wall I added a second leaf (70mm insulation in timber frame - 16mm plasterboard) so this too would be a two leaf wall. Same system for the ceiling: 20mm(thick) timber frames filled with 60mm insulation - 2*16mm plasterboard on top - 50 mm insulation. fitted between 140*45 mm roofbeams. The budget available for this construction is between 10 000 € and 15 000 €, but closer to 10k hopefully. The Questions: acoustics: - Will the sound be good? I know this is a very general question but what I mean is the following: I read as much as I could but that doesn't change the fact that I have never done this before. I'm wondering if I have made any major mistakes? things I'm missing? Improvements? suggestions? absorption: -will it be quiet enough? budget: -Is the budget realistic? Any other remarks, suggestions,… are very welcome. I hope the images are clear, if not say so and I will post other ones. Hope to hear from you soon! regards, Yannick

yroels wrote:

Hello everybody, budget: -Is the budget realistic?

I did 6 rehearsal studios and what I can say is that sound is really difficult to stop especially for the bass amp... The live room will sound quite good because of it's assymetrical shape. I build 1 studio with this shape and size and I think it's a bit to small for a classic rock band to play (1 drum kit + 2 guitars + 1 bass ). You should try to draw it on the floor and figure if the band and amps can fit in that place... I didn't see/read anything about the ceiling... and there's again a lot of rockwool and plasterboards... I would rather think 20k for the budget...