Building a new room

"03-03-15: Milpai
Zd542,
Unfortunately the ceiling cannot go above 8 feet."

Not to worry, the bill for the system and the new room may go over 8ft. So at least you'll have something that high.

For outlets and related accessories, try The Cable Company (www.fatwyre.com). They probably have the biggest selection and they know what they are talking about. They will even send you demo units of anything you are interested in to try first.

Yes, I did look at The Cable Company and inquired about the Furutech GTX-D R.
I had a question on "dedicated line[s]". Why do people have 2 or more dedicated lines? One for amp and one for other equipment?

Power outlets can cost a fortune, but if you look for 'hospital grade' outlets they will be better, and often they cost about 20% of those in the audio trade. Also, you mentioned being stuck with current cables for the speakers. Please consider a trip to HomeDepot and get some 12 gauge speaker wire, its very inexpensive and I bet you will find it much better then what you are using. Ceiling should be acoustical tile, rough pebble finish will tame resonances that a flat, sheet rock ceiling will produce.

Don't worry too much about outlets they can always be changed later. Concentrate on the things that must be installed before the walls are closed in.

Such as, install at least 3 dedicated outlets without any junctions or tie ins. Use at least 10 gauge wire.
You can then install a line for other outlets and a line for overhead or side wall lights.
I also ran cat 7 cable and cable TV and telephone jacks.
If the room may also be used for home theater run the best speaker cable you can afford from the front of the room to the back and sides.

Yes, use insulation inside the walls but don't just butt the 2x4 tight against the concrete walls, leave a gap.

On the ceiling, I used 2 layers of 5/8" drywall, the second layer is glued to the first before final screwing. I wish I had double layered the drywall walls but you may want to.

Buconero117,
I plan to use Albert Porter's Ports which are cryo Hubble made to his specs. As far as speaker cables are concerned, I have a different view point than you - so lets not go there. I currently have a drop-in ceiling that the previous owner did in the basement, but I want the ceiling higher. I will try to research on acoustical tile.

Ozzy,
My question is - when people have dedicated outlets, do they use them to directly connect the device (amp, preamp, cd player) to the outlets? I plan to use the outlet to connect my power conditioner and then the devices into the power conditioner. I have looked at a youtube video of MIT Z-Duplex, which is a in-wall power conditioner. It shows how the noise is cleaned when using that. I don't know how it would affect the performance of the amps when plugged into such outlet.
The room already has a home theater wires in the front and back. I plan to put a dummy box on those corners and keep them ready if I move in future. As of now - no interest in home theater. Yes, considering the CAT5 cables. What type of insulation do you suggest - regular fibreglass or other alternatives?
2 of my walls - I plan to double layer using Green Glue. I had not thought about this for the ceiling. I read that you have to use isolation clips to decouple the joist and drywall for the ceiling to be really soundproof. So I am not sure if the 2 layers in the ceiling would help me. Most of my listening is done in the night when kids are in bed.