Room Ceiling Height for 2 channel listening - is taller always better?

 5 layers of drywall, and a layer of sheet steel. 

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WOW. Some dedicated people here. I thought Dry wall was sheetrock? I learn something everyday..

Outside wall, thermal mat, 30lb felt, 5.5 of insulation with fire blocks, sound board, 3.5" of air space (this is the actual sound proofing the air space), vapor barrier, sound board, 5/8" fire rock. Seal all the drilled holes with expanding foam. Top and bottom and drilled holes between studs they all need to be sealed. Some like to use construction adhesive on the floor to pinning and drywall to sound wall. I used screws and galvanized double dip sinkers ONLY. I drove every nail in this house by hand and never used green sinkers or guns including the roof and my kitchen cabinets.

From the drywall out has nothing to do with the drywall in. What is in the wall is for the neighbors or the people in the rest of the house.
When you taped and finished the room. The acoustic treatment NOW begins for your sound system. Funny how that is too. I've seen guys only sheet rock half way up with exposed insulation and a vapor barrier the other 1/2 and it sounds great. When you do all the walls it fails the clap test. Rock the ceiling and it sounds like an echo chamber with concrete or hardwood floors.

I like heavy floor to ceiling acoustic theater curtains.

I like suspended acoustic panels with lighting too. 8 X 8 of panels in front of the listening position at about 10 feet in height. 

Warehouse set ups are the most fun, 220/240 480 3 phase is nice too. The bass is a little tricky though. :-) Home made 14" sonotube bass traps. The guy must have had 30 of those things 12 foot tall with 1-4" holes. Panels for walls open back.

I gotta' find a warehouse, I would love a conservatory type environment if it wasn't so hard on the finish and the electronics.. No static issues.. LOL

Orchids, Century plants and for the clean up carnivorous plants, for smash and grab wannabes. Dip weeds..

Merry Christmas Every ONE.. My Vanilla is almost ready to put bows on. One more shake, I wish you could smell the different kinds.. The ones with the 50 year old Cognac/Kettle one and Madagascar A stock vanilla beans. The ginger bread with goat buttermilk and black molasses. What a combo.. You should see the silly dog.. Summersaults for ginger bread.. LOL The rabbit, kale and carrots, go figure.

Regards

@exsedol88 

I am currently building a room in my basement. My room is smaller,15x161/2x71//2 when finished. I had the room designed by an acoustician. I am using safe and sound rock wool for the insulation and 2 inch rigid fiberglass panels inside the room. There is NO drywall inside the room. I’m told I will need zero extra panels inside the room. The room walls are partially concrete and partially out in the open. The open areas are 2x6 with a sandwich of drywall and mass loaded vinyl on the outside. I also used liquid nails  when building the walls to add to the rigidity. I agree with consulting a professional. Good luck!

Some interesting thoughts and approaches but I’m not sure folks are trying to solve or prevent the same problem. Not sure about the OP but I don’t care a bit about reducing the ability of the sound from bothering neighbors or my own family—I don’t want a soundproof listening chamber. What I do want is a room that will allow my system to perform optimally with minimal to no use of additional treatments. If those with experience can chime in with thoughts on room dimensions with vaulted ceilings and construction tips and materials I should consider employing that would be great.

I like tall ceilings... I solved the bass by having 15inch tannoys 

ronboco what is mass loaded vinyl?

Regards