Hello Mikec, I also have an "L" shaped room. I'm set up in the corner of the "L". Also have an open stair in the corner. 16ft long x 12ft wide with a vaulted ceilng 8-12ft. Thiel CS5i's, Classe CA-400, ARC LS-15, MIT 330 med bal, 330 shotgun bal, 770 twin cvt. I devided the length by 5th's. So my speakers are a bit over 3ft from the wall. I sit in a leather sofa against the opposite wall, about 9ft away from them. The speakers are about 9ft apart. For these speakers, I guess that I'm in the near field. I had to work on toe in with the highs. But everything sounds great. The only treatment that I use is a throw rug on the wall behind my speakers. My dealer told me to be careful not to "over" treat the room. I also have wall to wall carpet with a throw rug in the center. An "L" shaped room can work, it just takes a lot of placement to get it right. You might want to borrow a tube pre from your dealer to try with your CA-300. Good luck!
Absorbtion?
Does glass reflect or absorb, i forget? and will extra thick padding and extra thick upgrade carpet absorb too much high freq. My system is forgiving uptop by nature. Want to open topend if possible. Already using silver. Classe Aerial 10t equiptment. Room 12x19.6x8, Cardas placement. Any suggestions besides changing Classe pre and amp or a new house? Thanks in advance! Almost forgot to mention the room is the dreaded L Word (shape). This is Bad. Thanks