I have just started my new home theater today. The contractor is in the process of framing the basement of my townhouse. I was wondering what type of insulation I should use. (1) To keep my neighbors from shooting me due to the noise and (2) to improve the definition and clarity as much as possible in my small basement home theater.

I came across this stuff...any good?

http://www.soundprooffoam.com/soundproofing-a-wall/soundproofing-wall-new-best.html

Thanks for the help.

Hope this can help.

Here is a wall board

The use of fiberglass insulation between the studs is a requirement; however, you do not need (or want) to spend the extra money on fiberglass insulation with any derivative of the word "acoustic" in the name.

Isolation clips and channel are excellent. The channel shown can be purchased for less money at local supply houses. The Isolation Clips shown are PAC-INTL RSIC-1 clips. Excellent, but shop around for better pricing.

The barrier material they have is less effective than a second layer of drywall. The suggested practice is two layers of 5/8" drywall with green glue between the layers.

The GP product is ineffective in music or movie playback spaces and should not be used in those applications.

Are two layers of 5/8" drywall with green glue between the layers more effective than the isolation clip, isolated-wall method?

No. You want two layers of 5/8" drywall with green glue AND the isolation clips.