[slow.junk]

Just as the thread title states, do Whisper Clips, Green Glue, double drywall, etc. make a difference inside the room or are they used merely to limit sound transmission through walls? I understand that the addition will reduce incoming noise, but if I have a perfectly quiet house it won't make a difference, right? On the flip side, the addition will reduce outgoing noise from the HT as well, but if I'm the only one home it doesn't matter, right? Reason I ask is I'm trying to calculate the cost of building a new HT and all the articles I read about soundproofing is to eliminate the transmission of it and nothing is mentioned of improving sound quality within the room so I would not want to spend ~$2k on clips, GG, and DD unnecessarily.

Thanks!

- still trying to figure it all out... :help:

 

[slow.junk]

If you have no need to isolate the sound then definately don't bother

Thanks Ted.

 

[slow.junk]

Great, thanks guys. The room will be fully treated on the inside and I just wanted to make sure that I wasn't missing out on improvement by skipping the clips, GG, etc. The HT is in the basement with the kitchen above it and then the bedrooms another level up so you don't hear anything up there.

 

[slow.junk]

Please don't forget to account for ventilation isolation, the doors and any penetrations like outlets.

For outlets, does a spray foam (such as Great Stuff) work at sealing them? Or is that not enough?

 

[slow.junk]

Another question: if I had the budget to do only Whisper clips or Green Glue, which would havethe better bang for the buck in terms of isolation? (Both assuming dual layers of 5/8" drywall)

 

[slow.junk]

Since I've got your attention... :wave: :coocoo: Can I ask yet another question?

My HT room is in the basement in the corner so it has two exterior, cinder block walls. Is it possible to mount Whisper Clips directly to the block walls or is that not a good idea? It would be awesome to save a few inches by not running 2x4's (my room is only 12' wide from block wall to supporting beam). I would put some thinner insulation inbetween the channel and block walls.