Now I'm really confused, not that that is an usual state of affairs. Can bass traps solve frequency response suckouts, or not? I maintain they can't. For those who maintain that bass traps are the solution, please estimate how large a trap would be necessary to deal with the 61Hz problem in the original question. |
if you have a wide null centered at 61 Hz, your best bet is to try and cross a sub over a bit higher than 61 Hz and boost that null. just be careful not to create other issues with the added low freq energy released into the room. if you use a RTA while you are tweaking the sub settings to properly mate the sub to your main speakers, you can see the results with each turn of the knob. in the end, you will find this to be a very tedious process that can drive you insane. |
This shows a before and after where a suckout at 75 Hz is completely removed Minitraps The entire demonstration is on the Minitraps Demonstration video Since this room is probably particularly bad -I don't think you can typically expect a dramatic 15 db improvement but you get the idea. Broadband bass absorption will normally improve suckouts but each room will behave differently. There are some articles on how to determine placement on Realtraps site too. Note that minitraps are not the most you can apply for bass absorption as they are 3 1/4 inches thick. The minitraps are very practical and useful for both corners and walls - a great all round product. However, specifically for a corner, the Tri-traps I use are actually thicker as they fit all the way into a corner. |
Onhwy61 If you're treating reflections properly, you're treating both nulls and peaks. For treating 61 Hz, I would consider 1/4 to 1/2" membranes, 3 to 4' wide and 6 to 8' tall. That would be with a practical 4 to 6" depth and 703/705 dampening. I haven't done the math yet but that's based on my work with 4' by 2' membrane panels which were efficient around 100 Hz. Not likely to buy anything that size off the shelf because it's just too big to ship. I wouldn't even consider "soft" traps for this frequency. I wonder if there's a market for membrane trap kits? Just the unassembled frames (Ikea style). The rest can be obtained from building stores. |
