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Silver Member Username: GrebnereonPost Number: 454 Registered: Mar-06 | here is a lnk to my install. https://www.ecoustics.com/electronics/forum/car-audio/279245 12" arsenals, w/ 2 cuft each without displacement. i plan on porting this box, i already checked with Chad at ascendant audio tech and he said that box is perfect size (he would know, so please dont question my motives here) and i want to port it to 35hz. i want this very loud, but still have decent to good SQ. anyway, where should i put the aero ports on my box? |
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Gold Member Username: FrkkevinResonant Engineering..., Fort Worth... Email Post Number: 1584 Registered: Nov-05 | link didn't work.. what is the complete box specs.. external dimensions and sub displacement |
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Silver Member Username: GrebnereonPost Number: 455 Registered: Mar-06 | well it is 2.06 cubic feet per chamber.it is 14 inches high, 30 across and 22 1/4 deep but front is double baffle, so inside dementions are 12.5 inches high, 28.5 across and 20 deep i dont know displacement for sure. specs are here http://www.ascendantaudio.com/arsenal12specs.html |
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Silver Member Username: GrebnereonPost Number: 456 Registered: Mar-06 | and here is the link to my install if it works this time https://www.ecoustics.com/electronics/forum/car-audio/279245.html |
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Gold Member Username: FrkkevinResonant Engineering..., Fort Worth... Email Post Number: 1585 Registered: Nov-05 | theres only two ways you can port that box.. make that center baffle that divides the chambers a brace support by cutting it away to look something similar to a window [+] and using one slot port on one of the sides or you could port each chamber.. only drawback is the ports would be facing opposite directions.. any chance of you making a new box? |
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Silver Member Username: GrebnereonPost Number: 457 Registered: Mar-06 | maybe i guess. all i wound need would be a sheet of MDF. but i would rather just use aero ports and port each chamber. that was my plan. i just dont know where to put the port at. i could possibly sqeeze them in on the front of the box or the side or the back<< which would be easiest. but if you think it would be alot better to just build a new box, then i might as well, but theres no way i can fit a bigger box in there, as you can tell by the pic, it is a very tight sqeeze already |
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Silver Member Username: GrebnereonPost Number: 458 Registered: Mar-06 | why is this thread being G>A>Y? theres actually 6 posts and it says theres only 4, and it hasnt gone up to the top when i post |
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Gold Member Username: FrkkevinResonant Engineering..., Fort Worth... Email Post Number: 1587 Registered: Nov-05 | External dimensions of 14x30x22.25 leaves you with 4.278cu.ft.. vent should be 12.5x3x21 to tune it to 35hz.. now where to put the port is up to you.. far left.. far right.. or you could put it in the middle of the two subs.. if you want you could use two 4" aeros 11.5 inches long.. would get you that 35hz your looking for |
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Silver Member Username: GrebnereonPost Number: 459 Registered: Mar-06 | yes but the front of the box is 1.5 inches=3/4" MDF x 2. and divide your answer by 2 and you get 2.06 cuft per chamber. also, yes i would put in aero ports, but doesnt it matter where you put them? i mean it would be loudest to put them in the front of the box but they wouldnt fit there, so i was thinking id put them in the back of the box, firing the ports into the cabin. you think i will get much more SPL by doing this? (not doing anything to the box except put 1 4" port in the back of each chamber? |
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Silver Member Username: GrebnereonPost Number: 460 Registered: Mar-06 | _____________________________________________________ |
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Gold Member Username: FrkkevinResonant Engineering..., Fort Worth... Email Post Number: 1588 Registered: Nov-05 | i honeslty don't see that current box working.. if you put the port directly behind the subwhat do you think will happen.. you will have some back pressure but its just going to blow through.. the only design i saw that had a setup like your thinking about doing was two alpine type Rs downfiring with ports facing up.. its only did a 134.x on a TL and sounded horrible. i just don't see that bo working unless you cut out that chamber divider and porting it out the side |
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Silver Member Username: GrebnereonPost Number: 463 Registered: Mar-06 | ok thanks man. what kind of box could i build that would be loudest? i dont have much space to play with as you can tell by my pics. somebody want to design a box for me, tuned to 35hz that will fit in my trunk? |
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Silver Member Username: GrebnereonPost Number: 464 Registered: Mar-06 | -------------------------------------------------- |
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Silver Member Username: GrebnereonPost Number: 466 Registered: Mar-06 | anybody??? |