than the Theater series. You lose a bit of low end extension, but have lower distortion (numbers on paper, fwiw) from the 2226. Taut, articulate bass with individual notes well defined. And can run it with a simpler LP xover. The difference in enclosure size gives you about a 65 pound finished weight 4 Pi Pro, not sure how much the Theater series 4 Pi weighs, guys? Moving speakers DOES happen. I am personally really screwed if I ever buy another house :)Seriously, the low end from the 2226's is fine, and IF I LIVED IN AN APARTMENT might be less obtrusive to the neighbors than a speaker going down even lower...maybe. For sure, the 4 Pi Pro's would fit into an "apartment sized" living space easier. If you need the bottom octave, you do need to consider the original Theater series design. Good luck, Sam
btw, if you are intending to use a 16 ohm 2226J...94dB/watt may be your result...it would be a great speaker still, but need more power to drive it well. and need considered when adapting the xover circuit.