sundownz Posted April 10, 2009 Author Report Share Posted April 10, 2009 im guessing everthing else has one layer on it as well? if not what got done with one pack i am trying to figure out how much i will need Only the roof so far. My bulk pack was not quite full... I estimate I had 24-28 ft^2 in my pack, they are 36 ft^2 full. Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
bobonit Posted April 10, 2009 Report Share Posted April 10, 2009 Could you just run a sweep to see if your peak changed instead of just trying different freqs? Quote 97 Maxima SE Bunch of shit going in, check out the build Build Log Link to comment Share on other sites More sharing options...
sundownz Posted April 10, 2009 Author Report Share Posted April 10, 2009 Sweeps don't seem to work that well in my experience compared to a full burp. You can get in the ball-park but you still need to test each frequency around that at full burp volume to find what the real peak is. Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
bobonit Posted April 10, 2009 Report Share Posted April 10, 2009 Sweeps don't seem to work that well in my experience compared to a full burp. You can get in the ball-park but you still need to test each frequency around that at full burp volume to find what the real peak is. Ahh, ok. Thats good to know for when I finally get my car done, I wanted to find the peak of my car, so a sweep will get me close, but I'll have to pinpoint it by freq after that. Thanks. And back on topic, Nice Results !! I love the analytical way you are doing this. Quote 97 Maxima SE Bunch of shit going in, check out the build Build Log Link to comment Share on other sites More sharing options...
sundownz Posted April 10, 2009 Author Report Share Posted April 10, 2009 I am out of dampener so I am playing around a bit with other stuff... My peak did changed already : 48 Hz - 150.7 dB 52 Hz - 151.9 dB 53 Hz - 152.0 dB 54 Hz - 151.9 dB 55 hz - 151.6 dB Frequency is up 3 hz to 53 hz now. Counting the gain from frequency change I am now up 0.9 dB total. Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
Team Nemesis-DJ Posted April 10, 2009 Report Share Posted April 10, 2009 Nice Jake..just need the rest of your deadner Quote Link to comment Share on other sites More sharing options...
sundownz Posted April 10, 2009 Author Report Share Posted April 10, 2009 Shipped from Arizona yesterday I believe... so probably next Wednesday to Thursday. Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
cookiemonster Posted April 10, 2009 Report Share Posted April 10, 2009 holy moly r u serious...just about a 1/2 a db from deadning the roof? ok im seriously doing something wrong in my car i know it...lol great job jacob...i wonder if u will gain if u triple layer the whole roof ...hmmmmmmmmm 80 I know of some people gaining a 1/2 db just from doing the front doors. Very nice posting Jacob. Keep it up! Quote 1989 Honda Civic 1990 Honda Crx Refs: Sundownz, Derrick824, QCguy Link to comment Share on other sites More sharing options...
sundownz Posted April 12, 2009 Author Report Share Posted April 12, 2009 I know of some people gaining a 1/2 db just from doing the front doors. Very nice posting Jacob. Keep it up! Indeed... my front doors are WEAK too. So I may end up gaining some tremendous SPL by the time I am done! Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
sundownz Posted April 15, 2009 Author Report Share Posted April 15, 2009 My dampener got here early - it is here today! In the mean-time the Jeep needs to be ready for two shows this weekend so I am putting four 1500Ds in for that purpose. My previous best score with a single Nightshade 15" with two 3000s @ 1/2 ohm (similar power to the four 1500s @ 1/2 ohm each) was 153.0 dB. We'll see how I compare with the dampening done so far. In order to keep to the scientific method I won't apply more dampener until I get back from the shows and re-install the 3000D. But I can go back at the end and compare at high power once again once all the dampening is done! Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
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