So your model was right from what another poster says (im away from my pc). What exactly bothers you about this...think about it, you can only use so much power with these because you built large efficient boxes. With smaller boxes you can squeeze a few more dbs out and you sacrifice some low end and use a lot more watts getting there.
I will always trade some spl for extension. Extension imo is the prize...adding spl above 25hz can be done so cheap...a few 29 jbls if need be, pa460s etc.
We want to see raw sweeps to know exactly how much boost you need to have flat extension to potentially 5hz. Trust me we can easily create a better response...it takes some time patience and consideration to get there.
I have sealed ultimaxes (and ported, 10 12 ,15 and 18s). I have 10" ultimaxes in sealed 3cft boxes. PE sells a 1.25cft box which is "ideal". F that. My 3cft just gives me a bunch more extension. I had planned to make ported but ended up sealed and guess what? Response sealed is so good in my room the response rises below 10hz without boost. I never knew this because i never tried sealed in this room.
Compare it to a model at 1.25cft the only difference is I can use less power and get lower extension. Cost? Sacrifice a db or 2 of max capability.
If you are like me i dont want to maximize spl capability. Better to keep everything comfortably in the low or no distortion zone, vs a few more db with high distortion.
In fact if u think about it, what good is say 120db at 50hz if you cant get more than 95db at 20? So we need to know exactly what it takes -- your room size, your placement, your seating...how much boost and cut makes it flat?
Placement. Constructive summing. Then PEQ. Then Audyssey.
Its there man. Ive been down these roads dont stress you can use what you got and soon enough realize you did a good thing building the correct size box!
Its very possible a box too small would not get you to flat down to 10 or 5hz. This box size guarantees you will. The question is only, what can you get out of your setup when calibrated perfectly? Mad you might not use your full amp? Build 2 more. Tell me why thats bad...
Last edited by RoboAVS; 04-16-2019 at 05:08 PM.