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Help with Sub box
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<blockquote data-quote="Vitiell0" data-source="post: 5034109" data-attributes="member: 594608"><p>So a month or so ago I bought a 12" Alpine Type R sub and a Kicker ZX750. I built a 1.4 cuft ported box outta 3/4 in ply. I did ALOT of research about the dynamics of the sub boxes and stuff but im no expert so please dont be too hard on me! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</p><p></p><p>It has a 3in in diameter port on it and i think it was like 11in long? I used a port calculator to figure out how long the port needed to be so i think thats good... Its tuned to 30Hz from my calculations. The box is completely sealed except for the port, everything glued and caulked</p><p></p><p>Anyway about one week after i had installed everything my sub ended up blowing and it happened when i wasnt even pushing it hard at all. Im not sure if it was because of me not setting the amp correctly or the back pressure of the box or what so ill try my best to explain how i had everything. Any help on diagnosing what i messed up would be great! The sub was under warranty so i have the new one now and would like to get everything right this time.</p><p></p><p>heres some pics of the box</p><p></p><p><img src="http://i89.photobucket.com/albums/k234/vitiell0/idk002.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://i89.photobucket.com/albums/k234/vitiell0/idk001.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>if anyone has any recomendations for the settings on the amp such as gain, crossover and db boost on this set up PLEASE give your 2 cents!!!</p><p></p><p>I have an Apline headunit</p><p></p><p>Edit: also the sound quality seemed to distort pretty fast and i wasnt getting the same power out of the sub that i was expecting after tons of reviews i read. Will dynomat on the inside of the box make a signifigant improvement? thanks for ANY help!</p></blockquote><p></p>
[QUOTE="Vitiell0, post: 5034109, member: 594608"] So a month or so ago I bought a 12" Alpine Type R sub and a Kicker ZX750. I built a 1.4 cuft ported box outta 3/4 in ply. I did ALOT of research about the dynamics of the sub boxes and stuff but im no expert so please dont be too hard on me! [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] It has a 3in in diameter port on it and i think it was like 11in long? I used a port calculator to figure out how long the port needed to be so i think thats good... Its tuned to 30Hz from my calculations. The box is completely sealed except for the port, everything glued and caulked Anyway about one week after i had installed everything my sub ended up blowing and it happened when i wasnt even pushing it hard at all. Im not sure if it was because of me not setting the amp correctly or the back pressure of the box or what so ill try my best to explain how i had everything. Any help on diagnosing what i messed up would be great! The sub was under warranty so i have the new one now and would like to get everything right this time. heres some pics of the box [IMG]http://i89.photobucket.com/albums/k234/vitiell0/idk002.jpg[/IMG] [IMG]http://i89.photobucket.com/albums/k234/vitiell0/idk001.jpg[/IMG] if anyone has any recomendations for the settings on the amp such as gain, crossover and db boost on this set up PLEASE give your 2 cents!!! I have an Apline headunit Edit: also the sound quality seemed to distort pretty fast and i wasnt getting the same power out of the sub that i was expecting after tons of reviews i read. Will dynomat on the inside of the box make a signifigant improvement? thanks for ANY help! [/QUOTE]
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