granniesMEATloaf Posted January 14, 2014 Report Share Posted January 14, 2014 does anyone know the resonant frequency of the Chevy HHR LT? 2009 Chevy HHR Two C2 Audio Threatcon 2 12's (prefab box very temporary) DC2.0k @ .5 ohm Link to comment Share on other sites More sharing options...
HHR Ed Posted January 26, 2014 Report Share Posted January 26, 2014 For peak SPL? Changes slightly depending on a few factors. Seat material (Cloth or Leather) Sunroof or Not Seat position Woofer position HHR Panel, Half Panel, or Standard. So the range is usually 42Hz-46Hz for enclosures in the cargo area. 52-62Hz for forward firing No-Wall boxes at B-pillar. 60-65Hz for a B-Pillar Wall 46-53Hz for a C-Pillar wall. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
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