Originally Posted by badtlc
Hopefully you fellow Rythmik folks can help me figure out what is happening. I don't have localization issues with my dual subs but it is very similar. My crossover is set to 80Hz and the bass "sounds" like it is coming from all directions like normal. The issue is how I'm feeling the bass.
I did a sub crawl and some trial and error. I ended up placing my sub in the front right corner of the room and the 2nd up against the same right wall but located just behind my couch. So with both subs on the right side I am experiencing a pressure in my right ear that isn't there, or at least not at the same level, in my left ear. I know my dual FVX12 subs will struggle fully pressurizing my 5,000 ft3 space but I have never understood what that really meant. If they were fully pressurizing the room would my ears "feel" the bass equally like they hear it?
I guess in summary, is this something I'm feeling because both subs are on my right side? Or is this something I am feeling because both subs are on my right side AND i'm not getting full pressurization?
Hey bro. So I shall use a bit of physics and try to keep up.
So subwoofer crawl is a very primitive method. The reason one did it was to kinda not sit in the standing waves lul. Now for the the first thing you need to do before the sub crawl is to calculate the standing wave frequency for your room, then you play a sin wave at that frequency and then crawl. There will be 3 different base frequencies (h/w/l) and their multiples which will create standing waves.
Why I call or primitive and useless is coz while you can awkwardly place the subwoofer (assumption) 3feet from the left wall and 5 feet from the back wall as per subcrawl, it’ll be pretty difficult to raise the sub 2 feet in height. Therefore everyone suggests the MiniDSP. With that in place I’ve put my subs symmetrically on L&R of my front wall since my MLP is only the front row. We get the back row occupied only once in a month or so. This isn’t to advertise a product, I’m just stating the benefits one gets with a dsp.
Next I’d recommend you to also refer harman studies for multi subwoofer here . https://pdfs.semanticscholar.org/00da/51387c572cfd27c0256cb15e44e976a1a72e.pdf
If I remember correctly if you’re setting woofers at the back and front they should be either Front mid+ back mid/FL+BR/FR+BL.
If you want the simplest and easiest solution, go to the back wall and start the sub crawl from 1/3rd from corner. So if your room is 18 foot wide, start on the back wall 6’ from the left back corner and find a spot either on the back wall or anywhere across the left wall.
Hope this helps. I’ll also wait a bit for some one else to verify my understanding on the subject before you start the heavy lifting.