The studio space was built inside a two car detatched garage. The building was cinder-block with an attic for HVAC and storage. 

 

We used the "room within a room" design with completely seperate walls and new ceilings. The space had a modest 9' height which after trapping gave us a finished 8'5" height.

 

The splayed walls and odd-dimensions kept the room nodes small and close and the built-in trapping gave the room a controlled low-end response.

 

We built it using standard construction materials which kept the costs down. The walls were framed in 2x4 framing and the sheetrock was installed over rock-wool insulation on resilient channel and the dual layers where sandwiched with acoustic glue (green glue) to raise STC results..

 

The front soffit wall, which encloses the Urei 809s, include a front slat wall diffusor/trap which is good down to about 4kHz, was built over low-end traps that get the front-end response down to about 80Hz.

 

The right and left side slat walls give us some simmetry diffusion and trap down to about 6kHz The offset left and right traps are good to about 8kHz

 

Cable runs are underground in 6" pvc we buried under the slab.