Hi all my room is a dedicated home cinema room so I can do anything I like with no WAF. It's 3x5m and all the gear is at one end the 3m end, which has a electric projection screen on the 3m wall. I'm going to buy some MK sound S300 speakers which will go behind the new acoustic fixed screen. I will build a false wall and everything will be hidden. So what would the ultimate subwoofer I could build in the space I have? I would leave all the space below the screen for a subwoofer...subwoofers? So the size of the space I would have would be 3000mm wide, by 500mm depth and 500mm high. I listen to music a lot to so something tuneful, something that I could set crossover at 80-100tz? I would prefer sealed....I think? Don't mind how many drivers, I have 3000mm of width. I'd like to build it, and enjoy it, not thinking all the time I wish I'd put xxxx drivers in? Maximum would I suppose be £500 a driver? I could alway put two in and add more if needed later? My concerns are if I build it and it did not work at that end of room, I would not be able to move it? I could build it as a permanent structure? A wall of drivers!