Swordlordboy1234 Posted March 28, 2012 Report Share Posted March 28, 2012 I understand it might be hard to just explain with this open of a topic but id like to learn anything about subwoofer cancellation that anyone can share with me... Instances where placement and direction might cause it? I understand out of phase woofers will cause it I'm talking more on the lines of... ALL woofers are properly wired but DB are lost because of box design and sub firing direction. Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
larrys95civic Posted March 28, 2012 Report Share Posted March 28, 2012 Some one showed me this a while back http://www.caraudiohelp.com/newsletter/losing_bass.htm Quote Team Superior SPL Former Installer at Driven Sound & Security http://www.drivenss.com All kinds of forsale threads http://www.stevemeadedesigns.com/board/topic/164247-amps-subs-and-misc/#entry2383262 http://www.stevemeadedesigns.com/board/topic/164430-polk-audio-sda6000-sound-bar/#entry2386634 http://www.stevemeadedesigns.com/board/topic/164279-3-michael-kors-watches/#entry2383983 http://www.stevemeadedesigns.com/board/topic/164549-more-items-from-storage/ http://www.stevemeadedesigns.com/board/topic/166967-dd-9518s-amps-kenwood-custom-explorer-dash/ If someone is feeling generous I'd love an original sig LOL Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted March 28, 2012 Author Report Share Posted March 28, 2012 Yeah just read through that one. Seemed like all stuff you would see on "how its made" or something like that. I was wondering from people who are in the sport and can tell me from experiences. Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted March 28, 2012 Author Report Share Posted March 28, 2012 BUMP please? i would like to hear what people gotta say on this topic! Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
larrys95civic Posted March 28, 2012 Report Share Posted March 28, 2012 Yeah just read through that one. Seemed like all stuff you would see on "how its made" or something like that. I was wondering from people who are in the sport and can tell me from experiences. wow, sorry that didn't help... Quote Team Superior SPL Former Installer at Driven Sound & Security http://www.drivenss.com All kinds of forsale threads http://www.stevemeadedesigns.com/board/topic/164247-amps-subs-and-misc/#entry2383262 http://www.stevemeadedesigns.com/board/topic/164430-polk-audio-sda6000-sound-bar/#entry2386634 http://www.stevemeadedesigns.com/board/topic/164279-3-michael-kors-watches/#entry2383983 http://www.stevemeadedesigns.com/board/topic/164549-more-items-from-storage/ http://www.stevemeadedesigns.com/board/topic/166967-dd-9518s-amps-kenwood-custom-explorer-dash/ If someone is feeling generous I'd love an original sig LOL Link to comment Share on other sites More sharing options...
jrchevy87 Posted March 28, 2012 Report Share Posted March 28, 2012 thats actually a pretty good ? and ive been wondering about that myself, the only way that i could think to do it is to reasearch wave lengths and how they travel and distances traveled per wave then look at the reflection factor and where the wavelengths meet - to + that would be cancellation, but ive also been wondering if you could have cancellation with just one sub the reflecting wave hits the cone at an opposite wave but i just havent had the time to do the research and math lol Quote Jeep Wrangler TJ Hardtop Build Link to comment Share on other sites More sharing options...
Swordlordboy1234 Posted March 28, 2012 Author Report Share Posted March 28, 2012 im not sure on the math part, i just herd someone say that in JP's tahoe with 10 18's PSI, that his first 8 were fine but the 2 facing forward are canceling out sound. I sat in it over spring break nationals and it was the loudest daily driver there hands down. I was just curious if those back two are actually canceling the other 8. If you don't know JP, just picture chickens caddy with two more 18's facing forward at the back. all i know is two things... His tahoe was stupid loud... and when i do 4 15's in a civic i don't need my subs to cancel. Quote My old YouTube channel : http://www.youtube.com/user/SwordLords1234?feature=mhee My old build log : http://www.stevemeadedesigns.com/board/topic/161872-96-accord-b2-sundown-sky-high-dc-power-re-re-build-for-heatwave/page-37 My New Build - http://www.stevemeadedesigns.com/board/topic/207041-2016-mazda-6-sql-build/ 2016 Mazda 6 Touring JL Fix 86 - OEM signal correction B2 prototype DSP 6to8 B2 Ref63 - 3 way active set 2 B2 Class H quattro's 1 B2 Zero.5R @.5 2 B2 HNv3 12 d2 B2 SLIP40 - Lithium in the trunk Northstar Group 35 under the hood 100ft 2/0 welding cable 30ft 4ga welding cable 20ft 8ga welding cable All stinger OFC speaker wire Soundrive custom RCA's Tons of attention to detail.... Can it be perfect? Link to comment Share on other sites More sharing options...
larrys95civic Posted March 28, 2012 Report Share Posted March 28, 2012 Well then you need to figure out the distance that all of your speakers are going to be away from each other and the trajectory. Then figure out the frequencies each speaker will be playing. Then figure out the length of the sound wave of each frequency. Then at what point each frequencies wave will interact with each other to determine at what point they will begin to cancel each other out. Quote Team Superior SPL Former Installer at Driven Sound & Security http://www.drivenss.com All kinds of forsale threads http://www.stevemeadedesigns.com/board/topic/164247-amps-subs-and-misc/#entry2383262 http://www.stevemeadedesigns.com/board/topic/164430-polk-audio-sda6000-sound-bar/#entry2386634 http://www.stevemeadedesigns.com/board/topic/164279-3-michael-kors-watches/#entry2383983 http://www.stevemeadedesigns.com/board/topic/164549-more-items-from-storage/ http://www.stevemeadedesigns.com/board/topic/166967-dd-9518s-amps-kenwood-custom-explorer-dash/ If someone is feeling generous I'd love an original sig LOL Link to comment Share on other sites More sharing options...
jrchevy87 Posted March 28, 2012 Report Share Posted March 28, 2012 Well then you need to figure out the distance that all of your speakers are going to be away from each other and the trajectory. Then figure out the frequencies each speaker will be playing. Then figure out the length of the sound wave of each frequency. Then at what point each frequencies wave will interact with each other to determine at what point they will begin to cancel each other out. Thats the part i havent gotten to yet lol, but i do know one thing cancellation will only happen at a specific frequency with a rollon(i guess u could say since it'd get louder) Quote Jeep Wrangler TJ Hardtop Build Link to comment Share on other sites More sharing options...
larrys95civic Posted March 28, 2012 Report Share Posted March 28, 2012 Once you figure in wattage, voltage, and all the other variables along with outside noise it's impossible to get an exact figure. Unless you are going for straight DBz I wouldn't make that the focus of your build. This is a hobby and a sport to have fun with, enjoy the build and then enjoy ripping it out and starting over again and again. You won't get it right the first time and if you do you'll still want to redo it lol. And feel free to ask and learn from all of SMD, we have all spent thousands of dollars and thousands of hours in cars Quote Team Superior SPL Former Installer at Driven Sound & Security http://www.drivenss.com All kinds of forsale threads http://www.stevemeadedesigns.com/board/topic/164247-amps-subs-and-misc/#entry2383262 http://www.stevemeadedesigns.com/board/topic/164430-polk-audio-sda6000-sound-bar/#entry2386634 http://www.stevemeadedesigns.com/board/topic/164279-3-michael-kors-watches/#entry2383983 http://www.stevemeadedesigns.com/board/topic/164549-more-items-from-storage/ http://www.stevemeadedesigns.com/board/topic/166967-dd-9518s-amps-kenwood-custom-explorer-dash/ If someone is feeling generous I'd love an original sig LOL Link to comment Share on other sites More sharing options...
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