Sounds like you have a good ear. :) Your approach is pretty sound, but only some one with pretty good ear training would normally approach it empirically.
You could be running into a couple of issues. First is "room gain" The phenomenon that the room extends the anechoic -3dB point of the speakers and boosts the bass overall. Getting an extra 10-20 Hz bass extension is not impossible. The second is room modes. If you end up with a bass peak in just the right region it can also either extend the bass, or make it feel bloated and exaggerated.
I would encourage you to measure and see. The Dayton iMM6 is under $25. Together with Room EQ Wizard (free) you'll get a much better idea. I use OmniMic but it's around $300, but it's very easy to use and, for my speaker projects, ideal.
Measure, traps, miniDSP FTW! :)
You could be running into a couple of issues. First is "room gain" The phenomenon that the room extends the anechoic -3dB point of the speakers and boosts the bass overall. Getting an extra 10-20 Hz bass extension is not impossible. The second is room modes. If you end up with a bass peak in just the right region it can also either extend the bass, or make it feel bloated and exaggerated.
I would encourage you to measure and see. The Dayton iMM6 is under $25. Together with Room EQ Wizard (free) you'll get a much better idea. I use OmniMic but it's around $300, but it's very easy to use and, for my speaker projects, ideal.
Measure, traps, miniDSP FTW! :)