While you have greater freedom in positioning with the TacT, you cannot just plop the speakers down willy-nilly. Use the general rules (like the Cardas approach) or model the placement (with CARA or RoomOptimizer). You can, as stated, move the speaker farther apart and closer to room boundaries than without TacT but you do not want to set the system up in a way that creates significant peaks or, worse, nulls at the speaker or listener positiions.
Speaker Positioning with Tact RCS 2.0
Just received my Tact, but haven't had a chance to play with it (no digital cables yet). However, I was thinking about the issue of speaker placement with this unit. Since it corrects for room effects, can one get a wider soundstage by placing the speakers much further apart? Has anyone fooled around with non-"Cardas"-like speaker positioning? It seems to me that the Tact obviates the need for classical speaker placement methods, but I'm not sure where the benfits are to be had. I look forward to your input.