Originally Posted by JohnDean
You'd be looking for the place with the flattest overall response. Then if you put your sub in that location the MLP would have the best response.
First time using REW. Tried the sub in various location around the living room. By the left speaker seemed to show the flattest response, but I wanted to post all the graphs as I'm not positive what I'm looking for. The first graph shows the original sub location at the end of the couch in green, the sub by the L speaker in red, and by the R speaker in blue. I did notice that by the L speaker I have a bit of a boost at 38Hz and a sharp notch at 82Hz (whereas by the R speaker the notch is at 98Hz). I also included a waterfall with the sub at the L speaker. All of the waterfall show the ridge at 38Hz. Seems like my room like to resonate at that freq. Finally, I have an RTA graph of the noise floor before taking measurements. (not sure what the 90Hz line is but it was always there).
I understand the characteristics will most likely change if I had a sub that went a little lower (likely would excite other room modals), but if there anything I can glean from these tests? Are there other things I should look at to evaluate the sub and locations?
The original Sub location at end of couch and by each front speaker (positions 1, 5, 6)
Sub inside notional IB cabinet (position 2)
Sub just outside IB cabinet (position 3)
Sub by outlet near IB cabinet (position 4)
Sub by R speaker (position 5)
Sub by L speaker (position 6)
Sub by hallway outlet (position 7)
Sub in "coffee table" location (position 8)
Sub by L speaker waterfall (at position 6)
Noise floor RTA