It is a bit a question of taste.
I would place two panels of 10-15 cm on the first reflection points (also in the back), as it will reduce the reverb time a bit.
Making the bass <100 Hz work with absorbers requires a lot of material, as others said as well. A second sub at some point might be a better choice.
I was surprised how much improvement a second sub represents.
I would place two panels of 10-15 cm on the first reflection points (also in the back), as it will reduce the reverb time a bit.
Making the bass <100 Hz work with absorbers requires a lot of material, as others said as well. A second sub at some point might be a better choice.
I was surprised how much improvement a second sub represents.