UPDATES
- I have checked with a tone generator and my room does have an even response to freqs. There’s a very noticeable dip in amplitude around 80 and 160 Hz
- Also I have tried one simple suggestion someone gave, stuff the ports with rags. The booming effect suddenly disappears; so the bass strength unfortunately.
I am wondering whether my best choice at this point would be to go for a sealed cabinet design such as ATC as someone suggested, either SCM 11 or 19 and possibly a sub.
Tx all again