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Re: Turning a Sealed Box Into a Vented Box
only if it starts unloading, which happens below a half octave below tuning. So if your box is tuned to say 28hz, the sub won't start unloading until ~20hz. Since VERY little music has information below 20hz, chances are with a 28hz box you would always have equal or less excursion than sealed (the equal being at ~56hz and higher). But if you had say a 45hz box, it would start unloading at ~32hz, since a lot of music has information in the high 20's and low 30's, there's a very good chance you would end up overexcurting the sub if you didn't have a subsonic filter (a ssf is a simple highpass filter at a very low frequency, it's there to cut the power going to the sub at low frequencies to keep it from unloading below tuning).
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'01 Black Sentra SE
Weapon-R intake, HS header, HKS catback, ES motor mounts, B&M short shifter, Tein coilovers
Alpine 9835, Adire Koda 6.1, Adire Brahma 15, Arc 2100cxl, Linear Power 2.2hv, Cadence ZRS-8
'05 Silver WRX STi
Injen SES Downpipe, HKS Carbon-Ti catback, Cobb Stage 2 Tune, TiC Super Shifter, TiC Klunk Killer, Tein springs, Nitto NT555R Drag Radials
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