symmetry of treatment and bass

Hi everyone. I have a couple of questions and thought I may be able to get answers here as it seems there are a lot of very knowledgeable poeple gere. I have a control room that only has three corners, two at the front wall and 1 rear left since rear right is a staircase going upstairs. I have a bass trap in each front corner, should I put one in the rear corner as well, even though that would make the treatment non symmetric? Also I noticed that if I walk between the speakers and the side walls or anywhere along the front wall (behind the speakers) the bass is much louder. My mixes do seem to be a bit bassy, so I must be over compensating. WHat would cause that? Do I need a subwoofer? Last question is: my bass trap are hung in the middle of the corners, they do not go to the ceiling and floor (8" ceiling). Is that ok? SHould I put something at the top corners? SHould I also put something between the walls and the ceiling? Sorry for the many questions, I am a newby and I am in the process of reading posts in this forum. Roberto

Hi Roberto, in case you didn't see: http://forum.studiotips.com/viewtopic.php?t=1717

Last question is: my bass trap are hung in the middle of the corners, they do not go to the ceiling and floor (8" ceiling). Is that ok? SHould I put something at the top corners? SHould I also put something between the walls and the ceiling?

The tricorners target more modes than the 2corners. So it would be good to do this. Also on the wall ceiling corners (rigid wool corner traps). Florian

the dreamer wrote:

Hi Roberto, in case you didn't see: http://forum.studiotips.com/viewtopic.php?t=1717

Last question is: my bass trap are hung in the middle of the corners, they do not go to the ceiling and floor (8" ceiling). Is that ok? SHould I put something at the top corners? SHould I also put something between the walls and the ceiling?

The tricorners target more modes than the 2corners. So it would be good to do this. Also on the wall ceiling corners (rigid wool corner traps). Florian

Thanks, I 'll try to build some to install up there. I went ahead and installed a trap in the 3rd corner.

You also could build a portable trab on wheels which you move to the open corner while mixing. I think of something like a Studiotips Superchunk within a wooden skeleton with wheels underneith. Or just a normal Gobo. Cheaper and maybe more efficient. Depends on how your room is layed out. Florian

the dreamer wrote:

You also could build a portable trab on wheels which you move to the open corner while mixing. I think of something like a Studiotips Superchunk within a wooden skeleton with wheels underneith. Or just a normal Gobo. Cheaper and maybe more efficient. Depends on how your room is layed out. Florian

What I am noticing is that what is missing is the lower frequencies. If I mute a kick drum, I hear the snap but not the whoomph unless I walk behind the speakers

What I am noticing is that what is missing is the lower frequencies. If I mute a kick drum, I hear the snap but not the whoomph unless I walk behind the speakers

Do you mean: if u solo the kick? Bass trapping is ment to give u a better bass responce and flatten out problems in the bass frequencies.. It will then fix some of the canceling that your room has in these frequencies and you will actually hear the bass, and what you are working with down there better. I guess there is a lot of peoples here that can give you more info but the bottom line is: more bass traps give you a better bass responce in the sweet spot too if done correctly