need help with three way design

[chbright]

ok ild like the goal of myspeaker is to be a full tower that houses an integrated sub. i know there is a thread conserning side mounted sub drivers, but i dont wanta hijack that thread so i started this one.

the goal of the project is to build an affordable tower that can hit 20hz , and be under 5 1/2 ft tall, 18 in wide and 32 inches deep.

I downloaded and started exploring winisd but i realy dont know exactly what all the graphs mean ( the phase plot and group delay)
so far i have come up with what i think are some possibilities from what the graphs say.

i have come up with 2 different dayton 12in combinations an audax PR240M0 and a dayton 15 option. all are 6th order bypass because they were all gave high spl and were able to hit 20hz to 80hz.

now another question about the graphs. some of the designs i've stubled into stay around -2db on the gain chart, have humps and such and im wondering what all that means in the final skeam of things. i am also looking and using 2 audax HM210C0 or Davis Acoustics 17 RCG-DB or the like. i would like to use a little bit of a small exotic cone just to be different, not just cause i think it may sound better. these 2 also have high spl numbers when vented and that is another goal i'ld like to achieve.


i have built a set of
dayton 8" towers and they were good but i'ld like to try something else now.


i'm open to any ideas suggestions or whatever.

EDIT: also would like the total wattage under 250 total watts per tower

[chbright]

this is the gain curve i got with the following
1 dayton 12" in a 6th order bandpass
thickness= .018m
W=.4m
H=.943m
d=.8m

Vf1=207.6 L
L1=.743m
Tuning freq = 50.61hz


Vf2=39.7L
L2=.128m
Tuning freq = 19.15hz


front vent
number: 3
vent dia: .047m


Rear vent
number:2
vent dia: .047m


this is what i got so far. im lookn at addn 2 Davis Acoustics 13KLV5A 5" as the mid bass.

again any suggestions would be very nice.

EDIT: it wont display image