How do you tune a box?
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Bronze Member Username: Chriscf817TX Post Number: 16 Registered: Apr-07 | i just bought a ported enclosure for 2 kicker cvr's but wehn i hooked it up and everything only the higher notes sound loud while the deep bass that i was looking for sound like crap. i used to have them in a sealed box and i think they sounded way better than now. im disappointed but is there like a way to make the speakers hit the deep notes? like when i open the trunk they sound good but its when im inside the car that they sound weak |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 37 Registered: Dec-06 | Where did you get the box? |
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Bronze Member Username: Chriscf817TX Post Number: 17 Registered: Apr-07 | from an audio shop in my neighborhood |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 38 Registered: Dec-06 | Is it a pre fab box? Or did they actually build it? Im guessing its tuned incredibly high. |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1261 Registered: Nov-04 | Yeah, Chris. To make it sound "good" and musical it needs to be around 34Hz. |
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Bronze Member Username: Chriscf817TX Post Number: 18 Registered: Apr-07 | it was already made. they charge me like too much to make me a custom one |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 39 Registered: Dec-06 | Im guessing its probably tuned in the mid 40's. As Oleq said, a good range is 30-35ish HZ. That could be a big reason your having a hard time hitting the low notes. |
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Bronze Member Username: Chriscf817TX Post Number: 19 Registered: Apr-07 | how do i tune it to 34Hz? or i can't? |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 41 Registered: Dec-06 | You really cant do anything about it now. If you dont mind, how much did you pay for the box, and how much did they want for a custom box? |
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Bronze Member Username: Chriscf817TX Post Number: 20 Registered: Apr-07 | i paid 35 for it and they guy said for a custom they'll charge me like 300 |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 42 Registered: Dec-06 | At least you didnt spend too much on it. |
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Bronze Member Username: Chriscf817TX Post Number: 21 Registered: Apr-07 | yeah |
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Gold Member Username: Nyyfan13Fi SSD USA Post Number: 4959 Registered: Jul-06 | can you build your own? |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1262 Registered: Nov-04 | Believe it or not, but $300 is what you pay for a good custom box - if you think about it, if you're spending cake no subs amps, you need to finish the project well and get the right box as that is the determining factor in how well the subs will sound. Any sub can sound like crap in a crappy box. There're a few ppl on this forum that build boxes - Marks Potts and Logan. I doubt you'll be able to find a good custom box for less than $200. My box is $260. |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 43 Registered: Dec-06 | What size are the subs? I do a little box building. |
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Bronze Member Username: Chriscf817TX Post Number: 23 Registered: Apr-07 | they two 12's |
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Bronze Member Username: Chriscf817TX Post Number: 24 Registered: Apr-07 | well im runnin late cuz im about to leave but email me and let me know cuz i didnt like this box chriscf1@juno.com |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 44 Registered: Dec-06 | Email sent, Chris |
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Bronze Member Username: Dakangofkrunk16Post Number: 18 Registered: May-07 | Logan is sellin a box 100 shipped 4cuft@35 hz for 2 12's Not sure if specs match your subs, but if they do you should buy it |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1266 Registered: Nov-04 | Is it 4cu ft per side or total? |
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Bronze Member Username: Dakangofkrunk16Post Number: 20 Registered: May-07 | There is a pic of it  |
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Bronze Member Username: Dakangofkrunk16Post Number: 22 Registered: May-07 | Don't no if it will fit in a mustang tho |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1267 Registered: Nov-04 | Looks like it's 4 cu ft altogether. That box should be just right for 2 CVRs assuming cutout diameter matches and it fits in your car. |
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Gold Member Username: Logan__tilleHamilton, Indiana United states Post Number: 7186 Registered: Feb-06 | Fu*k Yea SPLcraZe4Life160db Bass N Yo Face . Its 4 cuft all togather. It will make thoes CVRs louder then anything you ever heard.. |
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Bronze Member Username: Dakangofkrunk16Post Number: 26 Registered: May-07 | There you go Chris, Buy his enclosure, 100 shipped is a steal man |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1269 Registered: Nov-04 | No, a steal is when you break into Logan's shop and take the damn box  JK...that is a good deal. Carpet though??? |
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Bronze Member Username: Dakangofkrunk16Post Number: 30 Registered: May-07 | "No, a steal is when you break into Logan's shop and take the damn box" Oleg how did you know my plan???? Know logan will be on to me lol I agree it needs carpet. Of chris buys it you should carpet it. |
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Gold Member Username: Th3pwn3rPost Number:... Post Number: 2408 Registered: Jul-06 | "Fu*k Yea SPLcraZe4Life160db Bass N Yo Face. Its 4 cuft all togather. It will make thoes CVRs louder then anything you ever heard.." Lol...good one! |
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Bronze Member Username: Chriscf817TX Post Number: 25 Registered: Apr-07 | will that fit the mustang tho? because it was a real pain puttin the box i bought in |
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Bronze Member Username: Chriscf817TX Post Number: 26 Registered: Apr-07 | i could barely fit this, how will something that big fit?  |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1427 Registered: Aug-06 | i doubt very super highly that box will fit in any mustang unless its a '70 mach 1... |
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Silver Member Username: Jmh2004P. A., Texas Post Number: 101 Registered: Jun-06 | chris, what part of tx you from??? |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1428 Registered: Aug-06 | ahhh, yeah, thats an SN. no way that other box will fit. is that a 94-95 (5.0)? |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1429 Registered: Aug-06 | i would try to be super custom and just extend the port walls inside. anything to make them feel less "freeair"... |
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Bronze Member Username: Chriscf817TX Post Number: 27 Registered: Apr-07 | ft. worth. nope, its a 99 |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1431 Registered: Aug-06 | where in texas are you? im in odessa... |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1432 Registered: Aug-06 | wow, im kind of a mustang guy and i really thought it was a 94-98 just didnt know if it was 5.0 or not. i can tell its 99+ now... |
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Bronze Member Username: Chriscf817TX Post Number: 28 Registered: Apr-07 | what if i like make the opening in the middle more narrow by like blockin some of it with a piece of board? would that work too? |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1270 Registered: Nov-04 | It looks like it'll fit because it's shorter, but longer. Chris, take your trunk opening dimensions and Logan, get him the box dimensions. |
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Bronze Member Username: Chriscf817TX Post Number: 29 Registered: Apr-07 | yeah im sort of a mustang guy too, i use to be into those lil rice burners but i got over those. |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1272 Registered: Nov-04 | Doesn't the length of the port change the tuning frequency? If I'm right, you won't be able to change it. |
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Bronze Member Username: Chriscf817TX Post Number: 30 Registered: Apr-07 | the only way a box that long will fit will be if its short enough to fit from the inside of the car where the back seats fold down. it will be impossible to get anything that long thru the normal trunk opening. |
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Bronze Member Username: Chriscf817TX Post Number: 31 Registered: Apr-07 | ok so what if i extend the port length inside the box. will that work? or is there like no possible way? |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1434 Registered: Aug-06 | what if i like make the opening in the middle more narrow by like blockin some of it with a piece of board? would that work too? yeah, that would probably have some results. or take and add a little bit to the walls on the inside and kinda angle the piece you add towards the back wall making the tunnel abit narrow, it would give it almost a horn effect... oleg says you wont be able to change the tuning freq maybe, i dont know, i would try stuff just cause i would be in the same boat as you, i wouldnt know what to do but i have a big shop... |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1435 Registered: Aug-06 | "what if i like make the opening in the middle more narrow by like blockin some of it with a piece of board? would that work too?" yeah, that would probably have some results. or take and add a little bit to the walls on the inside and kinda angle the piece you add towards the back wall making the tunnel abit narrow, it would give it almost a horn effect... oleg says you wont be able to change the tuning freq maybe, i dont know, i would try stuff just cause i would be in the same boat as you, i wouldnt know what to do but i have a big shop... |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1436 Registered: Aug-06 | double post FTMFW! either way though, i believe there would be some results if you did some changing to the port because it simply wouldnt be the same port anymore, it would almost have to have SOME kind of results. |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1437 Registered: Aug-06 | "ok so what if i extend the port length inside the box. will that work? or is there like no possible way?" sure, just measure and very carefully put the pieces in there and glue and secure with screws and silicone. in other words, do it right... how much to add, i have no clue, i cant even design a ported enclosure from scratch, much less tune an already tuned one... |
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Bronze Member Username: Chriscf817TX Post Number: 32 Registered: Apr-07 | yeah i'll try something like that. hopefully i dont end up ruining it |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1273 Registered: Nov-04 | I think making the port longer will tune it even higher, but don't quote me on that. |
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Bronze Member Username: Chriscf817TX Post Number: 33 Registered: Apr-07 | so do u suggest a wider opening? like does more airflow = higher tuned and less airflow = lower tuned or is it the other way around? |
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Silver Member Username: Big_edge_headPost Number: 104 Registered: Mar-07 | bump..... im silver now..... wooooooo |
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Gold Member Username: JohnfiacA-ToWn, 152-153db Da... My wangers b... Post Number: 2654 Registered: Mar-06 | i thought the longer the port the lower it was tuned? And shorter.. the higher.. but im not sure with keeping same small port area..with those displacments |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1279 Registered: Nov-04 | lol I'm not sure either, I know someone does know for sure! Now who is it??? |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1281 Registered: Nov-04 | lol I'm not sure either, I know someone does know for sure! Now who is it??? |
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Bronze Member Username: Bjfish11Garden Plain, KS USA Post Number: 46 Registered: Dec-06 | These calculations are assuming the port area remains constant... If you lengthen the port, the tuning will decrease. If you shorten the port, the tuning will go up. |
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Silver Member Username: J_c_wheeler8Columbus, IN United States Post Number: 450 Registered: May-06 |    Interested? 36"x14.5"x23" Port length is 4.75 inches and tuned to 33hZ. |
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Bronze Member Username: Chriscf817TX Post Number: 34 Registered: Apr-07 | how much shipped and all? no carpet? |
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Bronze Member Username: Chriscf817TX Post Number: 35 Registered: Apr-07 | can u take a pic of what the inside looks like? |
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Silver Member Username: J_c_wheeler8Columbus, IN United States Post Number: 452 Registered: May-06 | there are 3 pix above theres nothing much more exciting than what you saw, i took pix of the vital parts. I used clear silicon, so you dont see the white sealant. Also ill take $100 shipped. Let me know, so I can take it off ebay. |
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Bronze Member Username: Chriscf817TX Post Number: 36 Registered: Apr-07 | i took the measurements and it wouldn't fit. if it would i would take it but there's no way it would fit the opening of my trunk |
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Silver Member Username: QuigPgH, PA US Post Number: 387 Registered: Sep-05 | why dont u just build ur own box man? you could prolly get your on costum box for bout 40-50$ ... thats if u alredy ahve the tools |
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Bronze Member Username: Chriscf817TX Post Number: 41 Registered: Apr-07 | yeah but like i have no idea how to tune it and what not |
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Silver Member Username: Solobaric4lifePost Number: 759 Registered: Jan-07 | "Believe it or not, but $300 is what you pay for a good custom box - if you think about it, if you're spending cake no subs amps, you need to finish the project well and get the right box as that is the determining factor in how well the subs will sound" oleg is very correct, 300 is actually a good price for a box that a sound shop customly made, i got a quote at mine for 2 18's and they told me 350, and fiberglassin it and look good and smooth is 500, and thats a single custom box for 2 18's, i still think there high though |
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