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<blockquote data-quote="KARLEON" data-source="post: 458587" data-attributes="member: 541893">Ok, fund are really low right now, so i dont even have 50 bucks to buy one of those cheap radio shack meters. And i really want to do my best at the sound off on the 25th so im trying to figure out my resonant frequency. Yesterday i done searches after searches after searches on numerous forums on the topic. I was hoping to find someone with the same exact car as mine who has already found out their resonant frequency, and i know it can still vary, but atleast that would have been my best guess.Anyways, i came across a formula and say it a few times, but i just wanted to know who all has used it and does it work out pretty well....Basically you are suppose to measure the center of the sub perpendicularly (straight out) until you hit the dash. this gives you the length of the 1/4 wave. Now multiply that by 4 and divide by 1130then i heard 1130 divided by (what ever the length was) and divide that by 4 instead of multiplying it by 4.I really really need some help with this resonant frequency thing. Im going to do my best to try and get this meter, at the least, find someone i can borrow the money from, get the meter, use it, and take it back and make up some story about thats not the right kind of meter. but anywayz.... any help is appreciated</blockquote>

[QUOTE="KARLEON, post: 458587, member: 541893"] Ok, fund are really low right now, so i dont even have 50 bucks to buy one of those cheap radio shack meters. And i really want to do my best at the sound off on the 25th so im trying to figure out my resonant frequency. Yesterday i done searches after searches after searches on numerous forums on the topic. I was hoping to find someone with the same exact car as mine who has already found out their resonant frequency, and i know it can still vary, but atleast that would have been my best guess. Anyways, i came across a formula and say it a few times, but i just wanted to know who all has used it and does it work out pretty well.... Basically you are suppose to measure the center of the sub perpendicularly (straight out) until you hit the dash. this gives you the length of the 1/4 wave. Now multiply that by 4 and divide by 1130 then i heard 1130 divided by (what ever the length was) and divide that by 4 instead of multiplying it by 4. I really really need some help with this resonant frequency thing. Im going to do my best to try and get this meter, at the least, find someone i can borrow the money from, get the meter, use it, and take it back and make up some story about thats not the right kind of meter. but anywayz.... any help is appreciated [/QUOTE]

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