Soundproofing and room correction for apartment?

Soundproofing and room correction are two different animals. Soundproofing a room deals with adding mass such as adding another room inside a room. That of course would be somewhat costly. So unless you own the apt it would not be worth it. Now sound correction is much easier on the pocket book and there are many ways to accomplish this. The problem right off is your room is a perfect square with high ceilings.The rug will do very little with controlling sound. The best move would first to tame bass with upper corner traps and bass traps where the walls meet. You should use no less than 4" panels as long as WAF gives you the nod. Use panels in white.I say in white because the room is small so not to close it in. Once the bass is taken care of, most things will fall into place sound wise.Buy her a nice piece of Jewelry. That will give you a stronger handle with room acoustic.

There is not that much one can do to soundproof an apartment that does not involve some construction work. What you are already planning is almost all you can do in that area. The use of carpeting, particularly with a very good pad that is designed to reduce sound transmission is the most important thing you can do. Wall treatments may reduce the amount of higher frequency transmission, but, bass is almost unstoppable without major work. An acoustic isolation platform under the speakers (instead of spikes or couplers) can help with isolation and actually improve the sound (e.g., Symposium Svelte Shelves) of the system.

Major work can be as little as adding another layer of sheetrock to the existing walls. There are adhesives that are designed to provide some acoustic isolation between the two layers ("Green Glue") and these are quite effective.

If you can't really isolate the walls, your best approach is to get your system/room to resolve and provide satisfying sound at LOWER volume levels. It appears that you are well on the way in those respects. I personally like the way Devore speakers sound at lower volume. Tube traps can do a lot to improve the sense of clarity and articulation in the system. Tapestries on the wall can tame higher frequency slap echo (try these first, without any special, ugly, acoustic treatments). Go slowly with acoustic treatment panels because it is easy to over do them and make the room sound sterile. Bookshelves and record racks make terrific sounnd diffusers (particularly if all the records are not pushed in all the way so that they create an irregular pattern.

Choice of speakers can also dramatically affect the amount of sound transmission. When I switched from electrostatic speakers to regular dynamic speakers I notice that there is a LOT more sound spilling out of the listening area with regular dynamic speakers. With dipole speakers (electrostics, planar speakers), the back and front waves are out of phase and cancel at the sides. This means that the soundfield is much more focussed in the area between the speakers. In particular, electrostatics work well in apartment situations because of this dipole cancellation and their ability to sound good at lower volume (bulky size and placement demands are the downside).

Thanks everyone for the answers. I'm going to go slowly and just do the acoustic pad under wall to wall carpeting then put in record shelving and a tapestry or two, plus drapes on the windows. If my neighbors complain, then I'll look into heavier-duty stuff. I own the place, and it's a Condo, so I can do what I want, but I'm just not going to do more sheetrocking, as it's already a smallish room. Something on the ceiling seems good, but what?

I suggest you consider something like the Tact gear.

So I had a small chat with my neighbors yesterday who said they can hear the bass from my stereo. I was listening at not-overly loud levels, although for me that may be louder than for them. I'm clearly going to have to address this. That, or give up listening, which I don't see doing.

I'm looking into having a sheetrock ceiling put up with insulation between the original ceiling and the lowered one. I'll also have acoustic padding put on the floor with wall-to-wall over it. I just simply don't have the extra room (sorry for the pun) to put up additional walls, so I'm really looking for recommendations on what I can do with the walls now to make it better: canvases with acoustic batting in them? Corner mounts? Bass traps? What?

Also, anyone have any experience with putting their speakers on platforms to prevent bass traveling? That seems to be the biggest issue here.

Thanks,

Matt