Sound absorption panels at reflexion points, behind speakers and behind listening chair will help. Also bass traps in corners behind speakers. Check out ATS Acoustics for DIY products. I made 2x4' panels from their Roxul Rockboard 2", burlap fabric, and 1x3" pine in 6' lengths for frame with cardboard backing. Six panels could be made very inexpensively. They also have material for building bass traps. I am not affiliated with ATS, just happy customer.
Help with room treatment?
I know my set up is very modest compared to some on here but I am just getting into this over the last 4 or 5 months. I built a room specifically for listening and once completed my system has sounded so much worse. Bass is worse, highs are worse. I understand it is a fairly empty room right now. After addressing first reflection points will it get any better?
Or should I return to my living room?
Rega P1
Cambridge audio Azur 740a
Cambridge audio cp1
Dali Oberon 5’s
Room is 12.5 ft by 16.5 ft
Also not sure how to add a picture otherwise I would show you