HHR Ed Posted August 31, 2010 Report Share Posted August 31, 2010 how do you pressurized the cabin? He doesnt meant to literally pressurize the cabin. Its a term SPLers use to basically say to slowly build up SPL in the cabin. Give time to let the sound wave propagate, reflect and align, and stabilize in the cabin. Also to allow the sensor enough measuring time to properly read the SPL. The Term Lab Sensor needs to read for 2 seconds or more to calculate an accurate score. 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...
corteznewbie Posted August 31, 2010 Report Share Posted August 31, 2010 i knew that much lol. so its like doin 32hz tone to a 35hz tone slowly? Team DBs (Driven By sound) Link to comment Share on other sites More sharing options...
HHR Ed Posted August 31, 2010 Report Share Posted August 31, 2010 i knew that much lol. so its like doin 32hz tone to a 35hz tone slowly? no, like doing low volume to high volume at a steady pace 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...
corteznewbie Posted August 31, 2010 Report Share Posted August 31, 2010 o ok does that work on demo's to? Team DBs (Driven By sound) Link to comment Share on other sites More sharing options...
HHR Ed Posted August 31, 2010 Report Share Posted August 31, 2010 o ok does that work on demo's to? Its done with a test tone on your best frequency. Useful for a few tenths of a dB gain for competition. 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...
corteznewbie Posted August 31, 2010 Report Share Posted August 31, 2010 well soon as i get my new box which will be tuned at 29or 30 hz wut test tone would be best to burp 2 12's running at 2400 rms Team DBs (Driven By sound) Link to comment Share on other sites More sharing options...
HHR Ed Posted August 31, 2010 Report Share Posted August 31, 2010 well soon as i get my new box which will be tuned at 29or 30 hz wut test tone would be best to burp 2 12's running at 2400 rms You have to get a meter and test it playing. First play a sine sweep that goes through multiple frequencies and use the meter to see what the loudest frequency was. Then play only that frequency and test it again. 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...
corteznewbie Posted August 31, 2010 Report Share Posted August 31, 2010 well i'm s o l no one around here has a tl meter and my local shop uses a epic 160 Team DBs (Driven By sound) Link to comment Share on other sites More sharing options...
DirtyD78 Posted August 31, 2010 Report Share Posted August 31, 2010 i would tune higher if you wanna compete 2003 CHEVY SILVERADO REG CAB H/U SONY W/ IPOD TOUCH new build 2 dc audio lvl4 xl's rd audio 3250 box is behind the seats below the window 3.44 after tuned@34 htz 147.3@44 htz & getting louder Link to comment Share on other sites More sharing options...
corteznewbie Posted August 31, 2010 Report Share Posted August 31, 2010 well mine will be more for mini hair tricks plus it will be tunable i like the low low stuff Team DBs (Driven By sound) Link to comment Share on other sites More sharing options...
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