So calling all great advisors in this thread! @Gasp3621 @Jester1066 @WozzaB @StefanBFC etc!
2 questions about sound being right centric:
1) I have a good improvement by sealing the back holes of the right front and surround speakers. Is it bad not to seal the left ones? Will I get a very unbalanced sound this way? It does not seem so, but just asking
2) Bass is still very localisable anyway. What am I better off doing?
a) move the PB around - but I have limited choice - I could try left of the TV, Left of the sofa perhaps?
b) Add a second sub (considering limited placement options, in which case which one is better:
b1): get a double gem from BK to place to the left of the sofa, basically under the surround, facing front or right // alternatively placing it behind the sofa since it's slim
b2) return the BK P12 and get two SVS 1000 pro to place at either side of the TV
Any other option?
This sounds silly to use bungs in just certain speakers. I would question the use of bungs completely as you aren`t running them full range either and you have XT32 which should correct that bass region if boosted do to speakers close to walls. Ditch bungs or use them in both if you really hear difference!
Usually the sub locates even easier if you have it near at the rear either side so two each side would be prefered by most folks. The left side of tv may work, but it won`t sound as strong vs. corner loading as it won`t meet the other wall plus is now closer to opening (usually not best idea) and it can be hit or miss what kind of response you get.The editor app before graph gives you some idea, the after is simulated = useless as in too good to be true. Shame you don`t have space between center and right front speaker. You don`T want to spread the main L/R speakers further apart than what is distance to listener, in your case as you sit so close perhaps equilateral triangle is close to ideal (From L to R to listener), but if there is chance that you could move the sub in new position then you might have to compromise..