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I think I need more bass traps, where to place them??

Hi guys, I already have bass traps in all four corners of my room but I still have some pretty bad room modes resulting in big peaks at 60/120hz and dips at 80/160hz.

I spent hours and days messing around with speaker placement and my current setup is the best I can do in terms of matching my target room response curve aside from these modes.

So my question is...I assume I need more bass traps?  If so, what is next logical position for them?  Sidewalls?  Front wall between the speakers or directly behind speakers?  Back wall?  If the answer is yes to all positions, then where should I start?  Due to financial restrictions I would like to treat one area at a time.

Thank you!
128x128tboooe

Showing 4 responses by erik_squires

erik_squires
15,826 posts
 
Soffit traps, from GIK Acousitcs, you can run them on all 4 sides of your ceiling.

However, two tips:

1. Place your speakers asymmetrically
2. Get an EQ.

Since you have bass traps, controlling the room nodes is going to be a lot easier with an EQ, you are no longer in the realm of "impossible" peaks and valleys.

Best,

Erik
erik_squires
15,826 posts
 
Contact GIK acoustics for help, and you may need to place your speakers like they were 2 subs.  What I mean is, you may need to place 1 speaker, and then look for the best location for the second. Use a mic to find the locations that have the worst nulls and try to put the second speaker there. :)

Best,


Erik
erik_squires
15,826 posts
 
Remember the soffits can be hung up where the walls meet the ceilings as well. :)

Reflection points don't work all that much for < 100 Hz where the worst issues will occur.

Also, with enough bass traps, EQ can become effective with nulls. :)
erik_squires
15,826 posts
 
I'd ask GIK For advice. :)

But soffit traps ton't have to be exactly in the corners to work. With museum hangars, you may even be able to use the crown moldings to hang the traps from.  They're like S hooks which slide above the moulding. Depends on exactly what kind of moulding. :)
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