Your room dimensions are even numbers with common denominators (all divisible by 4...your room was certainly not designed by an acoustics engineer, lol). You’re going to have significant standing waves and bass issues regardless of positioning. Best thing you can do is increase the acoustic space with significant bass trapping. Contact GIK Acoustics and they can help you come up with a custom treatment plan.
Lots of bass at walls, lack of bass in center of room/listening position
I guess this is relatively common in listening system. Is there any way to smooth this out so I get more bass energy at my listening position? This happens with our without my 2x 18 inch subs. Room is 12 x 16 x 8 ft, speakers 4.5 ft apart on long axis and I am sitting 4.5 feet away. I tried moving back and forward but the entire middle center of the room except near the walls has decreased bass.
Is this a boundary effect or could it be due to bass cancellation effects?
Is this a boundary effect or could it be due to bass cancellation effects?