Room Acoustics and Bass Traps

[Sigmund451]

Ive struggled with this problem. First I had guitar problems, then a few cabinet problems. Those are solved

Now I am sure my practice space is killing my low E string notes.

4-7 frets do crazy things. I assume Im getting wave cancelation. Through headphones everything is fine. Notes sustain.
Depending on where I put the amp and where I sit certain notes just go THUD! Zero sustain and a fairly ugly sound.

I messed with it this morning and found a place to put the chair and amp where its acceptable. However, its a also my office and work space for other things. Their location is ok but not really ideal. So basically Ive moved the dead zones around a little.

SO...If I build and install real bass traps (over 6 inches thick suspended where there is an air gap should it fix this problem?
The squishy foam crap helps with room echo but of course does nothing to address the bass.

I understand no one can absolutely answer this question since every space is different but Id like some thoughts. I dont want to go to all the hassle of building these things if there is little chance of them working.

For some odd reason it is worse on my acoustic carved archtop vs my laminated guitars. Additionally, using the Dearmond setting on my Armstrong single coil makes the problem show up more than when using the full p90 setting. I guess its a different set of frequencies flying around the room and more easily disrupted

I just rememberd too. I must be getting some serious cancelation since the low E as it travels from my amp has far LESS volume than other strings...to the point where I have the pole piece raised higher than the 5th string. Not the case with headphones and when Im move the amp to a big room.