@mijostyn here is the answer, like always it lays in numbers, 8 12" mathematically
should do better job than 2 25" but in fact they don't there fore subwoofer is backing up the system with sonic boom. I don't have that problem in a fact I need to move my speakers off the wall farther to control my overwhelming bass.
As far as the sources, my TT is just something I like to play with but I'm not using it as the main source. DAC on the other hand is what I need to develop a bit better and I'm looking for alternative to what I have. I was looking in to the streamers/servers and as of now I'm not sure if I like the idea, sending digital signal from any computer shouldn't be a issue, it's only matter of software and file quality, DAC on the other hand can do big difference so I definitely take your advise and look in to Bricasti Design M3