Hi All,

It's been a while and I have moved on from and moved places since my crazy shed idea.
I'm currently touring but looking at installing a new project studio in a spare bedroom when I return in June.
I could really use some help. Below you will find all info on the project.
Thanks,

Bart

Studio Proposal.

Room dimensions:
L x W x H
4.20 x 2.80 x 2.60
Clockwise walls, from the top of the drawing:
- Outside wall, brick outside, wooden construction, insulation, plasterboard.
- Plasterboard, insulation, wooden frame, insulation, plasterboard.
- Plasterboard, insulation, wooden frame, insulation, plasterboard. (wood door)
- Part as first wall, part as walls 2 & 3

Proposed treatment:

4 x broadband absorber 60 x 120 cm (12,5cm depth)
Made with timber frame, rockwool inserts 45mm + acoustic foam (2 inch) on top, creating an approximate 7-8cm airgap behind the rockwool

3 x broadband absorber 120 x 120 cm (12,5cm depth)
same as above but twice the width. At the front of the room there is the issue of a window so I might make this frame collapsable with a (hinge) to 2 x 60 and build some legs.
One of the 120 x 120 would be suspended from the roof. But I''m not sure if this is a realistic goal with regards of suspending it so I'm also looking into an option of having a lightweight board with 2inch foam glued onto it of the same dimensions suspended.
Any suggestions?


I've calculated 3 basstraps where both wall facing sides are 60 cm.
I'm planning on filling them with a very high density rockwool are there any particular ones, from suppliers in the UK that are known to work better than others?

Also, I could really use advice on the bass trap in the back corner. I'd like to have one in each corner but this is not a possibility because of the door. Moving the door is out of the question as it is a rented property. My wondering is, will having just one affect the image or response so greatly that I'd be better off without this one?

I was also thinking to buy a large book case from Ikea, one of those ones with the 30 x 30 x 30 holes and to fill maybe the bottom 3 rows, (5 x 30cm wide) with the first 15 cm filled with high density rock wool and then a 15cm air gap and use the top 2 or 3 rows, depending on size I'm buying, for storing vinyl and manuals and such. This would then go against the back wall instead of the 120 x 120 broadband absorber and I was looking at possily hanging a custom size smaller absorber above it higher up the wall like a panoramic painting (30cm x 120 cm) sorta thing. Would this make more sense?

Also, I have been reading up on a lot of the studio SOS articles as well as many many other papers and posts here on the subject lately and the general consensus seems to be to only cover about 20 percent of the walls, now this design would lead to more being covered. Nothing drastic, but still.

It echoes and honks a lot empty. About bass response, I can't say too much as I haven't tried anything in there yet but I'm expecting the usual bumps.

This is a drawing, nice and amateur style in paint.


Monitors are Acoustic Energy AE22 on Quicklok stands behind the desk. They will be placed 40 cm from the sides, 50cm from the back wall approx, unless there are better suggestions. I also need to fit a 2 seater sofa in there that collapses into a sofa bed for guests. You know the drill. preferable against the left wall. Would this adversely affect acoustics?

I hope this all makes any sense and that some of the brilliant minds here can shed a light...

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Control room to be finished summer '12

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