Acoustic problems with Genelec 8040a-s at home studio

[ginterh]

Hi, I finally decided to try to adjust my pair of 8040a-s to optimal positions and I've found some really concerning problems. Here's some pictures of the positions and room (I don't have 20 posts to post links so this is the best I can do):

imageshack,us/g/69/img1714hz.jpg/

Issue #1: I did a frequency test and the result is that the volume is very low at 65-75 Hz and then goes very loud at about 100 Hz. Do you have any idea, what might cause that? Also my closet resonates somewhere over 100, but I guess I have to cope with that. As you can see, there is a huge window right behind the speakers. Might that be a problem? (Though I haven't noticed any resonance with it).
Would it help if I moved the desk to the opposite side of the room, where there is no window?

Issue #2: My right 8040a-s gain button has a defect, when the volume gets too high, something happens to it and it attains maximum gain until I move it a bit with something sharp. Also it's somewhy much quieter, my left speaker is at +6 dB and the defected right one is at 0, that way they're the same volume. Should I go to warranty? Do I have to go to Finland to get a new one? (I live in Estonia btw)

Also my soundcard is Native Instruments Audio 2 DJ and since it doesn't have balanced outputs, I have to use an active d-box with a 9V battery. Does upgrading to a decent soundcard with balanced outputs help anything?

Please don't hesitate from asking more specific questions.

Thanks in advance,

Henry

 

[pikupsoldier]

Cant view the picture..I tried replacing the , with a . but it still dint work.

 

[wx5]

If the speakers are still under a warranty use it. Those speakers are too expensive not to. Up-grading to a better soundcard will certainly produce a cleaner sound.

 

[ginterh]

Cant view the picture..I tried replacing the , with a . but it still dint work.

For some reason an extra dash at the end made the difference, here's the address again: imageshack,us/g/69/img1714hz.jpg/

If the speakers are still under a warranty use it. Those speakers are too expensive not to. Up-grading to a better soundcard will certainly produce a cleaner sound.

Kinda obvious, don't know why I've waited for so long. I guess I didn't want to admit to myself that I have to go through the process of warranty with Genelecs, ignorance is bliss. Anyway, thanks for reply.

 

[ginterh]

Bump, does anyone have any recommendations how can I improve the rooms acoustics cheaply, so the 65-75 Hz wouldn't be almost blank?

 

[Re-tox_stl]

I cant tell by the pictures, but is your room treated? Throwing up some bass traps and broadband absorbers at the first reflection points will help tremendously. I know that may not be possible being that there is a closet to your right, but if you can find a way to mount it to the door, or remove the door, that would be your best bet.

Drew