Basement studio - phase 1 - The control room

Hi everyone, Im really happy about finding this forum. Ive found a lot of usefull informations, but still i need some help. Id really appreciate if someone knowledgeable could take a look on design of my home studio. I work as a post production audio engineer, but id like to use this space mostly for music purposes. I play guitar, bass, and I like to play with softsynths. If it would be possible to track drums in second, smaller room - i would be really happy. Its not a necessity though, i use software drummachines most of the time anyway. Im only in planing phase now, trying to figure out how can i make best out of what i got. The place where I want studio to be is basement of my house, closest neighbors 100 m away, so the loudness is nor really an issue, and because of the fact that it is in basement not much of a noise gets inthere (the house is in the forest). I just want to make this room sound as good as it is possible. I like to mix around 85 db, sometimes a little louder but that depends on the thing im working on. Ive got two rooms. Ive decided that larger should be a control room, because small one is just to small. For now one I want to concentrate on control room. Measures are on the pictures. It is not completely regular rectangular space 561x374x234 cm which is 18.4x12.27x7.67 in imperials : ) Walls surrounding the room are made of bricks varying from 30 cms (12'')on the side up to 70 cms (27.5'') ("south" and "east" walls). Northern wall is about 50cm. (20'') It is basement, so basically walls are surrounded by earth. :) Obviously main inconvenience is that there are doors in corner (leading to garage). Doors on the west wall are leading to pool room. Ive put together best thing i could basing on my knowledge and ive made sketchup project out of it. And about ceiling - I was thinking about suspending it by 15cms. id put 5 cms of insulation on it and leave 10 cms air gap. It is made of airblocks, so afterall there should be plenty of air to absorb low freq. or im wrong ? Now my main concerns - should i put 10 cms of insulation on every single wall ? maybe better idea is to leave some bricks there. And if im putting insulation on the walls should i drywall it or just stretch some fabric over it? Ive been thinking of making sides of the front wall out of acoustic drywall and to use same material above mixing position on a ceiling. Ok, so these are pics of phase 1 of the design of the project : ) About budget - I suppose that 2000 $ should be completely enough for completing ceiling and the wood scaffold with insulation in it and fabric or whatever is needed over it. The spending game will probably start when ill have it ready and ill start to measure room with room eq wizzard. And i am prepared for that :) Ive uploaded skp file on rapidshare but its tremendously big, im sorry for that. Im not sure what went wrong :/ [Edit - ive used purge option on it, but its still 10 mb] http://rapidshare.com/files/187173971/Studio_FINAL_copy.skp Thanks a lot for reading that : ) (and i hope that the post is acceptable in its form)

And the last one : xD

Im almost done. Only rear wall and helmholtzs resonator are still waiting to be done. Thats what came out after first rew measurement: What do you think about this graph ? Is it possible that poor frequency response from 20-70 is caused by my speakers(alesis 520)?

Is it possible that poor frequency response from 20-70 is caused by my speakers

That would be my guess. Maybe you could check with Alesis to see if they have a graph for those speakers, showing what the response should be? But it sure looks like those speakers just don't do very well below 70. - Stuart -

8)

Cool!