USING THE W10GTi IN SPL COMPETITIONThe enclosures presented here provide maximum
SPL over a narrow range of frequencies and are
optimized for SPL competition. These designs use
a non-classical alignment in which the vented
enclosure’s resonance is carefully aligned with the
response of a sealed box of the same volume to
produce a peak in the system’s output slightly
above the tuning frequency. This peak may be as
much as 12 dB when compared to a sealed box
aligned for flat response
weLL it looks like you just dont know how to build a box because yes a custom ported box because its twice the size or 3 times the size of a sealed box is 3 times louder - 10dbs plus over a small but nice bandwith of like 30 to 45 hz more depending on the setup. mainly lows the ported box could kill the sealed too or highs if you tune it high. just takes Space
space makes bass