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Building a new room

Hello All,

I will be using a contractor to build a new dedicated audio room in the basement. The room dimensions will roughly be 19'X14'X8'.

Three walls are already finished and are concrete walls behind dry walls. I am thinking of making the third wall with 2X4s and double dry per side with Green Glue used between them. Also plan to add 10-gauge wire for a dedicated audio circuit. I believe this should be 20-amp circuit?. Also will not go with can light. Instead would prefer the ceiling spot lights. Do not plan to run a separate ground, as of now.

What insulation have folks used before for sound proofing? I was at Menyards for picking the Green Glue and came across UltraTouch+ denim insulation. Does this work better in dry walls and in ceilings?

What other points am I missing or should be taking care? Please share your experiences.
128x128milpai
brauser
526 posts
 
We recently finished a Home Theater room of very similar dimensions. At each corner we brought the wall in at a 45 degree angle a couple of feet to avoid the traditional standing waves problems associated with most rectangular rooms. Placing the speakers then against the flat corners and positioning the seating to the natural crossing points has created a 'sweet seat' area that is truly spectacular with good source material. As far as a dedicated circuit, flooring, etc...I basically agree with what has been said to this point.
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milpai OP
2,412 posts
 
Buconero117,
The furnace is in the basement and will be behind the new 4th wall. Hence I want to use double dry walls on both sides for this 4th wall. The furnace is already in place - so I cannot put isolation pads underneath it. Hence I want to know what type of isolation pads to use in this 4th wall being built? Regular fiberglass or the one I mentioned above? I do not have the speaker cables to move the equipment to one side. I can get that done at a later point. For right now, I can get a stand that is lower and place my equipment between the speakers. I also plan to get some Hubble IG outlets at couple of places. Yes, I am ready to do some acoustic tweaks.

Brauser,
I have some GIKs for the bass trap. Hence do not plan to do the wall at 45 degrees. I do plan to get the speakers at least 4 feet from front wall and 3 feet from side walls. It will all depend on how the speakers sound in that room.
zd542
5,339 posts
 
I don't know if its possible for you, but I tend to like ceilings that have some type of slope to them. Start at, say, 8ft in the front of the room, and have it end at 9 or 10 feet at the end.
rgwrjs
41 posts
 
I built a room using Quietrock. Double stud with Quietrock 545 on each side. The STC of this construction is 80 dB (very quiet). The Quietrock web page has excellent, easy to read white pages of building a music room with sound insulation. Enjoy your process.
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milpai OP
2,412 posts
 
Zd542,
Unfortunately the ceiling cannot go above 8 feet.

Rgwrjs,
I will talk to my contractor on the Quietrock. Thanks for the tip.

I also plan to look into some good AC outlet ports. Looking into Porter Ports. Fellow audiogoner Lak has indicated that he has had very good experiences with Porter Ports. I will also read about others before deciding which one to go with.
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