My first post here. I am Roon user since new year. i really like DSP features since my room is a huge problem. Few years ago I bought ATC SCM 11 speakers, which didn’t work in my room 4x4 meters. No bass, terrible ear pain. I changed them for Spendor A2 and then for a Spendor 2/3R2. I really like the big sound from 2/3, althoug I have some nasty bass boom issues from one of the speakers (same was with A2). I build some DIY bass trapes, inserted foam in one bass port and that helped a lot. I did some measurments with a borrowed microphone and it showed a huge bass build up at 43HZ. I then tried ROON with its DSP feature (mostly Parametric EQ), which helped a lot. I am still learning. Do you have any suggestions what is the best way to get bass under control with EQ (or any other DSP feature). I tried Peak/Dip with various setings at 43HZ, now playing with High Pass filter, filtering from 60HZ at 24dB. Any curves, suggestions from other user would be very appreciated.