Hitting a peak DB at a certain frequency is often a drag race for bragging rights so to speak, and is greatly influenced by the room and set up, other than professional testing as whats done in a controlled environment such as Databass for example. Any good ported subwoofer set up properly in a good room should should play flat +/-3db maybe +/-5Db's from around port tune to whatever the X-over point is set at. Providing DEQ is disengaged it should stay close to that at lower levels as well imo thus giving you well balanced bass throughout the bandwidth at lower listening levels. That been said our ears can sometimes not hear or get that balance feel unless DEQ is engaged at lower leves as its designed to gradually increase the low end the more the volume is reduced, i personally dont use it.
Sealed subs (in their lower end) will be more influenced by the room size, sealed or open, slab or floating floor than its ported big brother.
Adding to Gary Mertz good point, unless you have large subs in that space and your MLP isn't to far from them, you wont get much tactile feel with lower volume, this is where many like the DEQ option but it's subjective to each of us. Large capable ported subs will give you what you want properly set up so dont expect 12" ers to get er done in that large space or sealed subs unless their equipped with huge power and drivers.
-Funk 21.0LX Master/Slave combo 4800 watts RMS/9600watts (peak)-
-Chane A-2.4 L/C/R
-Chane A-1.4 side/rear surrounds.
Last edited by indebtbassfreak; 06-16-2020 at 07:21 PM.