[Kazminya]

I have a problem with the sound from my stereo going through not only a standard thickness sheet rock but also a good 6" thick wall of concrete as well. My stereo goes up to 30, (can't remember what it was). I typically play it at 8-10 during the day and lower it to about 4-5 at night. Even at 5 my sister, whose bed is on the other side of that blasted wall, complains about hearing the 'boom boom' of my music. Now I personally think she is just psychotic but she will not leave me alone about it. So I am wondering if Sound Curtains are what I am looking for to keep the sounds in my room and outta her 'bubble'? Or is there something else that will work better that is fairly inexpensive? I have seen a place where I can get the curtains for about $200 for a dozen I believe it was. I just want to make sure I get the right thing so I do not have to spend more money than needed.

[Big Red Machine]

Either you are exciting the concrete wall and it is transmitting or your flanking noise is going up and over the concrete via the wood structure and causing the disturbance.  I am not totally sure what you mean by sound curtain, but I am guessing it will not solve your problem.  You need to isolate your space from the house structure so the vibrations are unable to transmit via the structure materials.

[JLM]

Kas,

Please use the standard font, as your's is very hard to read.

I agree with Big Red, you need isolation.  Don't expect $200 worth of curtains to do much good (would probably only absorb a narrow frequency range of mid/treble sound. 

These types of problems are location specific and hard to diagnose without being there, or lots of pictures.  Unfortunately these types of problems are normally built into the very design of the structure and not easily (or cheaply) resolved.  Your best option may very well be use of headphones for any louder listening.  The good news is that headphones are relatively cheap compared to nearly anything else in audio.

[Browntrout]

The key is to play the music quieter and move your speakers closer together and sit nearer to them. The better the stereo the less volume is required to hear all the music.
  Or you could find somewhere that sells these sorts of products.....
http://www.soundservice.co.uk/soundabsorber_walls.html
  I'd be tempted to spend the money on getting a better quality sound and just turn it down so that your sister doesn't mind.
  Here is a Sound Curtain...
http://www.soundservice.co.uk/acoustic_curtain.htm
  Though I would expect something along the lines of this would be more effective...
http://www.soundservice.co.uk/soundproofing_mat_SBM5.html
 This can be used to reduce noise by 24db on floors and walls (anywhere really) with one 2mm thick layer. The more layers you use the more noise is reduced (two layers 29db, three layers 32db)

[Kazminya]

Thanks Big Red-It may be the deal with the concrete. Do y'all think that the age of the concrete might have an affect on its effectiveness? Because the house was built in the early 70s, as for turning it down I have it so low I myself can at points hardly hear it.
Unfortunately I have begun to believe it is just my sister being a prick about me. (You would really have to live with her to get everything that she does, and even then you probably won't understand her at all. I still don't and have been living with her my whole life.)

Thank you JLM for the suggestion of headphones, and sorry about the color. I would use headphones if it were not for the fact that more times then not when I have my music on in my room I am doing stuff that the wires would get in the way. Or I have company over and we hole up in my room to chill out and stuff. If we watch movies I hook my computer sound into my stereo to get the awesome sound that my stereo has. I do have a set of headphones, but more times than not I don't use them because I am all over the room. *laughs* I have trouble sitting still.

Thanks to you as well Trout, though if I turned it down more I might as well not have it on at all. *laughs slightly* Not trying to disrespect the suggestion just trying to make a small joke outta the whole situation I guess. Right now I am near the point of saving up my money and tearing down the walls and rebuilding them with the necessary buffers inside the walls. Unfortunately I don't think my folks would be too happy about it. I don't know, we have been remodeling the front bathroom for at least six months now. I am pretty sure I could get a couple of my buds and have the walls down and back up within a week. If anything I like the idea of the soundproofing mats, and I suppose I could just put them on the wall as is, no tearing down required. 

Thanks y'all for the advice and suggestions. If y'all have anything else I am all ears, seeing as I plan on one day having my own place with at least one room as a theatrical room. It will be great to know this stuff before I even have the place built... (I dream big what can I say*shrugs*)

[TRADERXFAN]

No no no... you are thinking about this all wrong....



http://www.discountsafetygear.com/ear-plugs-disposable.html


that is what you need, to give her and this solves the problem- CHEAP!

[bpape]

Most likely, the 2 rooms share a common floor system, ceiling system, and attic space so the sound is flanking around the concrete wall. A sound curtain isn't going to do much of anything to stop bass.  Only mass will do that.  Another layer of drywall and Green Glue can be pretty effective at helping but that's construction and not inexpensive.

Another option is to decouple your speakers/sub from the floor on some sort of isolation stand to at least minimize the physical transmission of sound directly to the structure.  It won't help with airborne transmission but might help a little.

Bryan