I wish I could and will definately realise this someday (work in progress but slowly) but not yet. On the good side: The 18LW1400 in the 175 Ltr reflex tuned to 37 Hz is relatvely flat between 45 and 110 Hz and inbetween 97-98 dN/W/mtr.
@Nicky: Answered via gmail.
@Nikos: Answered via gmail? If not: Yes, in Cubo 18 Extended on higher power levels.
How come you have the graphs relative to a BR, but not absolute? Can't you just measure them? (I am just interested)
Also what drivers to you recommend for the Cubo Sub? What drivers would you personally use? I want as low a response as possible, but I am not that interested in higher bass response, as I am going to be using them with lots of HD15's - so 30 Hz to 60 Hz is the range of interest for this sub.