theterminator Posted July 28, 2008 Report Share Posted July 28, 2008 Well i just competed in my first SPL competition and to say the least i am dissappointed with my score and the fact that i got last. I hit a 141.5 with my current box tuned at 30 Hz in the 0-600w class. So i began my next project with a goal of hitting 145. The box is gonna be 4 cuft with a tuning frequency somewhere between 43-55 Hz. Anyway heres some pics of it so far. Tell me what ya think and an idea you would of done. Also i plan on adding some type of sound damping material. What kind of gain in could i get from adding sound dampening material? Link to comment Share on other sites More sharing options...
EricM9104 Posted July 28, 2008 Report Share Posted July 28, 2008 could gain some dB's from dampening, could lose some dB's from deadening. 2015 Honda Civic LX 4dr | 24k miles Stock H/U and mids/highs Power Acoustik GW3-12" D2 Sub HiFonics BXX1200.1D @ 1ohm Random 2.5^3' dual ported box NVX LOC Stinger wiring throughout 1977 Chevy SWB Cammed 350 Dual exhaust Cheap Wish stereo Link to comment Share on other sites More sharing options...
chill phil Posted July 28, 2008 Report Share Posted July 28, 2008 the deadening will just raise the resonant frequency of the vehicle which is usually your peak note. 2007 Nissan Xterra SE Amp: Sub: Box: Electrical: TL Scores: Link to comment Share on other sites More sharing options...
David Posted July 28, 2008 Report Share Posted July 28, 2008 Most people lose a little bit when they dampen the car, it can be made up thou, you just have to retune everything. the dampning will change the res frequency of the car, so you will have to change stuff up to get it back, but seeing how your rebuilding any way, dampen the bish up good. Link to comment Share on other sites More sharing options...
David Posted July 28, 2008 Report Share Posted July 28, 2008 the deadening will just raise the resonant frequency of the vehicle which is usually your peak note. from my experience, it lowers the resonant freq. every car is differnt tho Link to comment Share on other sites More sharing options...
Jextel Posted July 28, 2008 Report Share Posted July 28, 2008 im sorry to crap but how do you know where to tune an SPL box? http://www.cardomain.com/ride/3042878TEAM DEADLY HERTZ "GET LOUD OR DIE TRYIN"only the loudest will survive. Link to comment Share on other sites More sharing options...
David Posted July 28, 2008 Report Share Posted July 28, 2008 by testing with a termlab Link to comment Share on other sites More sharing options...
theterminator Posted July 28, 2008 Author Report Share Posted July 28, 2008 yea my car peaked at 45hz on the termlab. Link to comment Share on other sites More sharing options...
theterminator Posted July 28, 2008 Author Report Share Posted July 28, 2008 Anybody know how to upload pictures. Link to comment Share on other sites More sharing options...
theterminator Posted July 28, 2008 Author Report Share Posted July 28, 2008 pics of the box. About 90 percent done. Just got to attach the rest of the ports and put the sub in and do some testing. Link to comment Share on other sites More sharing options...
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