CASZ71 Posted September 13, 2009 Report Share Posted September 13, 2009 So as you can see in my title i drive a 1998 chevy silverado Z71.. Ive had 2 different sets of subs since ive been driving and a few different boxes.. But i was wondering y my subs always seemed sooooo much louder with the windows down rather than up.. Can someone explain this?? Quote 2000 GMC sierra 1500 ext cab KMC XD Spy series rims Front doors Fosgate punch 6 1/2's stock tweets Rear doors Fosgate power 4x6's Probox 10 and box under rear seat Rockford fosgate R-500 Prime series amp (537 rms) 4 gauge wiring Link to comment Share on other sites More sharing options...
Jville140db Posted September 13, 2009 Report Share Posted September 13, 2009 (edited) simple definition sound wave has a chance to complete rather than being trapped in the cab where the lower bass freqs waves don't have time to complete before they cancel out on the other freq's the subs are palying if i'm wrong someone correct me Edited September 13, 2009 by Jville140db Quote Car is 2010 Scion Tc Currently in car Deck- Sony XAV-60 in-dash mobile video system Speakers- Rockford Punch 6.5in comps in the front and coax in the rear Subs- 2 Gen 3 Rockford P3 12's dual 4 ohm Amps- Rockford P1000-1bd and P400-4 Alpine Mrp-f300 is in for P400-4 which is out to service Wiring- all rockford nuff said Enclosure- Dual 12in custom box by SRQ Battery- Optima Yellow top with big 3 done Sound Damping- All Dynamat products 1-2 layers throughout with liner on top Link to my build log- http://down4sound.co...=newpost&t=5275 Link to my youtube- http://www.youtube.c...ser/Jville140db MECP Advanced CEA # 110531 BassBox 6 Pro for Box Building/Re audio box calculator If you can hear the passenger it aint loud enough!!!!!!! QUOTE (MickyMcD @ Sep 25 2009, 07:25 PM) "My system has 30 speaker terminals, that means shits wanging doggggg....."<!--QuoteEnd--></div> Link to comment Share on other sites More sharing options...
CASZ71 Posted September 13, 2009 Author Report Share Posted September 13, 2009 simple definition sound wave has a chance to complete rather than being trapped in the cab where a the lower bass freqs waves don't have time to complete before the are cancel out on the other freq's at if i'm wrong someone correct me Makes sense to me Quote 2000 GMC sierra 1500 ext cab KMC XD Spy series rims Front doors Fosgate punch 6 1/2's stock tweets Rear doors Fosgate power 4x6's Probox 10 and box under rear seat Rockford fosgate R-500 Prime series amp (537 rms) 4 gauge wiring Link to comment Share on other sites More sharing options...
bennett15 Posted September 14, 2009 Report Share Posted September 14, 2009 depends on vehicle as well i had a ext cab 1500 ram and it was way louder windows down but i now have a durango and it hits just as hard or harder with the windows up. i believe its because there is more airspace in the cab of the suv then a truck Quote 98 Dodge Durango 12 000K 50/55W Headlights 12 000K 35W Fog lights HU Panasonic CQ-VX100 7" Reciever (1) Fi SSD 18" Fully Loaded (1) Ported box 33hz (1) Soundstream TRX1500D (1) Soundstream TRX2.440 (1) RE 6.5" Component Set (1) Rear battery Big 3 in 0/1 gauge 2 runs of 1/0 Gauge wire 250A Alt soon.. Link to comment Share on other sites More sharing options...
abervintageman42 Posted September 14, 2009 Report Share Posted September 14, 2009 depends on vehicle as well i had a ext cab 1500 ram and it was way louder windows downbut i now have a durango and it hits just as hard or harder with the windows up. i believe its because there is more airspace in the cab of the suv then a truck bingo, the sound waves can travel to you ear and be completed by the time they reach you in an SUV, not so much in a truck Quote Link to comment Share on other sites More sharing options...
justin smith Posted September 14, 2009 Report Share Posted September 14, 2009 how to you make it where it sound just as louder or louder with the windows up though? this is what gets me lol Quote justin smith 1996 mercury grand marquis 20'' bentchi b7 lexani n3000 245/35/20 cactus 5kw at 1ohm dcr(beast) 2 18'' btl's in a 14.15^ft wall tuned to 35hz with 210'' of port kicker zx650.4 componets in still the works 200amp motorcraft alt xs power d3100 (beast) kenwood ddx512 h.u. you mean my EX? the one I dumped? just remember every time you kiss her that i used to cum in her mouth and BTW your girl just called me.... pure pwnage Link to comment Share on other sites More sharing options...
Baydestrian Posted September 14, 2009 Report Share Posted September 14, 2009 Yep, I've noticed this in every car I've had a system in. I've wondered the same thing. Quote 2015 Mazda 6 JVF Customz 4.0 Proto 15>Wolfram W4500 @ .5ohm 2 Sundown Neo 6.5 + 2 CT Meso Tweeters (Front) x Kicker KS6.5 (Rear)>JL Audio VX400/4i NSB-AMG35 (front) / 40ah Lithium Headway (Rear) built by Erni Audio & Electrical Link to comment Share on other sites More sharing options...
bennett15 Posted September 14, 2009 Report Share Posted September 14, 2009 how to you make it where it sound just as louder or louder with the windows up though? this is what gets me lol find the resonate frequency of the vehicle and tune your box or play songs near that frequency. Quote 98 Dodge Durango 12 000K 50/55W Headlights 12 000K 35W Fog lights HU Panasonic CQ-VX100 7" Reciever (1) Fi SSD 18" Fully Loaded (1) Ported box 33hz (1) Soundstream TRX1500D (1) Soundstream TRX2.440 (1) RE 6.5" Component Set (1) Rear battery Big 3 in 0/1 gauge 2 runs of 1/0 Gauge wire 250A Alt soon.. Link to comment Share on other sites More sharing options...
Demo402 Posted September 14, 2009 Report Share Posted September 14, 2009 I learn something new every day Quote Honda Accord 4 Door Current System - (2) 12'' Mtx Thunder 5500's (1) Alpine Mrp-m1000 @4Ω (1) Pioneer Deck Deh-3500 (1) American Legacy 1.0 Farad Capacitor (1) Stinger Voltage Meter (Blue) Big 3 Knu 1/0 Box 3.4^3@37hz Youtube. Link to comment Share on other sites More sharing options...
DEEz NUTz Posted September 14, 2009 Report Share Posted September 14, 2009 I learn something new every day O.K. I have another question then, is it better to face the subs up toward the roof in a SUV or is it better to aim them toward the back and why is that ? Quote 153.3 @ Turkey Drag 2009 Spl Modified 1001-2000 - Derrick Jones my alias... Wudn't accept DEEz NUTz !!! Link to comment Share on other sites More sharing options...
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