jj420
Ex Member
|
when using winISD to model the same driver in various alignments, it is plain to see that the fourth and sixth order bandpass both have higher peaks, but are nowhere close to flat.
modeling two fourth orders instead of one sixth order generally yeilds that same response graph when the two are overlaid. but the excursion is harder to control.
a plain ported box tuned around the Fs of the driver gets close, but restricts driver selection to those with an Fs around 30hz and produces a peaked resonse graph. A box ported to a less than optimal frequency will ideally still model very flat, but wont hold a candle to either of the spikes in the sixth order box.
SQ - proper driver in proper sealed, or well engineered ported
SPL - optimally tuned ported, fourth or sixth order bandpass, or series bandpass with gobs of power
SQL - uhhh... overcompromised either way, too loud to be listenable, not loud enough to win.
|