321slapinbass Posted February 22, 2013 Report Posted February 22, 2013 so i did the sealed 10" sub test and my cars resonant frequency is right around 35 hz. my box is tuned to 33.8 hz. how do i figure out the peak frequency response of my box. i do a 147.79 dB at 35hz sealed on dash. i want to know how to figure out my box peak because i realize that most boxes paek a few hz higher than the tuning and was wonder how far off it was from my cars resonant frequency. 2000 Dodge Durango Subs - (2) SKAR VVX 15 D2's Box - 7.2 ft^3 @ 33hz, 120 in of port Sub amp - Digital Designs M2 @ .5 ohm Mids + Highs - PRV Audio Mids + Highs amp - Hifonics 2000.4 Headunit - Alpine CDE-100 Equalizer - Clarion EQS746 Batteries - Mopar group 27 + (2) C&D 52ah Wiring - 1/0 BIG 3, (2) runs 1/0 Alternator - Singer 250A 147.79 dB @ 35hz - burp - sealed on dash 147.47 dB @ 35hz - music - sealed on dash YOUTUBE: http://www.youtube.com/user/321slapinBass/videos
Joe X Posted February 22, 2013 Report Posted February 22, 2013 You can never rely too much on software specially with this type of application but you may want to take a look at this for reference: Red represents response outdoors (free field) yellow represents "in-car response" as modeled by the software. What was used is two VVX-15D2 in a 7.2 [email protected] box. (from your sig). If you follow the yellow line to 35Hz there is a about 2dB difference to where it peaks.
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