debjit_g
I have a similar room to yours but mine is 15' x 20' with an 9ft ceiling, speakers 8ft apart, that opens to a kitchen on the left, and sit 8.5 ft from the Nenuphars. I have the FW SIT-1 and the Ayon Audio Odin III amps. I had better bass moving the speakers closer to the back wall with 5 degree toe-in. I recently added the Stillpoints Aperatures to the side walls which made the greatest impact in the bass when using the FW SIT-1 (I haven't swapped in the Ayon for a while). The lower damping factor and dual mono amps on the SIT-1 as compared to the SIT-3 might also have an impact.
I have a similar room to yours but mine is 15' x 20' with an 9ft ceiling, speakers 8ft apart, that opens to a kitchen on the left, and sit 8.5 ft from the Nenuphars. I have the FW SIT-1 and the Ayon Audio Odin III amps. I had better bass moving the speakers closer to the back wall with 5 degree toe-in. I recently added the Stillpoints Aperatures to the side walls which made the greatest impact in the bass when using the FW SIT-1 (I haven't swapped in the Ayon for a while). The lower damping factor and dual mono amps on the SIT-1 as compared to the SIT-3 might also have an impact.