Typical cuft for an 18" sub ? ...
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12917 Registered: Jul-05 | specifically a mmats juggs ... got about 12cuft b4 displacements & want to tune 35hz on a usamp 2000wrms .... have some ideas but want to hear what have u guys used on 1 of these ??? ... |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12918 Registered: Jul-05 | '''got about 12cuft b4 displacements & want to tune 35hz on a usamp 2000wrms .... ''' meant to say 12cuft of available trunk space but max box height is going to be 19" .... |
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Silver Member Username: SkaUSA Post Number: 212 Registered: Jan-08 | won't you be cutting it a little close with that 19"? or will you be mounting the sub on the side? |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12920 Registered: Jul-05 | sub is about 18.25" in diameter so 19 will work on front of the box (port & sub on same front) ...dont want it to go higher than 19" tall ... |
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Silver Member Username: SkaUSA Post Number: 214 Registered: Jan-08 | how many cubes are you going to put it in? |
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Gold Member Username: JkidderGunshine , State Flawda Post Number: 3113 Registered: Nov-05 | thats what hes asking. i'd say 7.0 tuned to 35 |
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Gold Member Username: •cam•BC Canada Post Number: 1775 Registered: Nov-06 | http://www.hexibase.com/acoustics/articles/try_tuning_it_to.htm |
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Gold Member Username: Killerzracing71Fredericksburg, Virginia United states Post Number: 1902 Registered: Aug-05 | rovin what u dont got now..... been almost a year since i talked to you on aim and i found the pics of the arcade games the other day LOL |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12922 Registered: Jul-05 | this isnt mine - heck y would any1 really "need" an 18" sub in ur car i need to build this box for a guy but would like some ideas since i never deal with any 18s b4 i hardly go on aim - kinda lost interest for me but i am still on here daily...  |
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Gold Member Username: MgbcsLincoln, Nebraska Post Number: 2082 Registered: Dec-06 | http://www.mmatsproaudio.com/pdfs/Recommended%20Enclosure%20Specs.pdf |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12923 Registered: Jul-05 | ^^^hey thanks im on dial up & was trying to get to that last night but it seems their site or ISP was busy & was taking forever to load those specs seem rather small just all other companies rec specs but at least its a ballpark figure ... |
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Gold Member Username: MgbcsLincoln, Nebraska Post Number: 2083 Registered: Dec-06 | Yeah I know what you mean. 5.0cuft seems really small. I haven't heard of anyone having one to ask around tho  |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12925 Registered: Jul-05 | at least FI rec 6-10cuft for any of their 18s ... |
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Silver Member Username: Surferdude9371Im BTL Bumpin Post Number: 537 Registered: Mar-07 | for my fully loaded btl 18 i have 8cuft b4 displacements sounds great but im no expert.... |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12933 Registered: Jul-05 | really need some help here especially since this model is the much older 6 spoke basket & its very hard to even find a pic of this online ..... |
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Gold Member Username: TejcurrentPost Number: 1037 Registered: Apr-07 | FI recommends 5-8 on the BTL, 6-10 on the Q and SSD, and 5-10 on the BL. To my understanding the Juggs like a bit of air to breath, so I'd give it 7-10ft net with 12-16sqin of port per foot. |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5212 Registered: Apr-06 | think 6 cubes is the least i would give an 18" i think the optimum cubic feet for an 18" is 8 cubes. i would recommend around 110-130 square inches of port. and tune accordingly to your preferences. |
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Gold Member Username: TejcurrentPost Number: 1039 Registered: Apr-07 | I think mine do fine in 5ft net- they also did good in 8 but port size, and power can change things. |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5216 Registered: Apr-06 | if i was makin a spl box id give it 4.25 cubes net  |
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Platinum Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 12837 Registered: Jun-06 | My Q has a recommended enclosure size of up to 10cu's. |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12944 Registered: Jul-05 | ^^^thats gotta be damn big .... |
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Gold Member Username: •cam•BC Canada Post Number: 1815 Registered: Nov-06 | "i think the optimum cubic feet for an 18" is 8 cubes." *cringes* ...not at the volume. |
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Gold Member Username: TejcurrentPost Number: 1043 Registered: Apr-07 | ^what do you mean not at the volume? |
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Platinum Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 12894 Registered: Jun-06 | ^^^Not at THAT volume...... Rovin, mine is at 9.5 cu's. |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5288 Registered: Apr-06 | "i think the optimum cubic feet for an 18" is 8 cubes." *cringes* ...not at the volume." really?? what makes you think not at that volume?? |
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Gold Member Username: •cam•BC Canada Post Number: 1822 Registered: Nov-06 | I'm not cringing at the volume. I'm cringing at the fact that you're stating an optimum Vb for all 18" subs, for all different system goals and individual needs, and for all vehicles. |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5290 Registered: Apr-06 | "I'm not cringing at the volume. I'm cringing at the fact that you're stating an optimum Vb for all 18" subs, for all different system goals and individual needs, and for all vehicles." seems like these days all you're doing is getting on my back about all my posts.... thats what i think, i dont see you giving any input.. ive designed / built many boxes...can you say the same???? i could start bashing your posts. everyone has an opinion. im pretty sure i also posted... " if i was building an spl box id give it 4.5 cubes" maybe you missed that post... lets here what you have to say CAM. |
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Platinum Member Username: Rovin4 10 Pioneer... Post Number: 12961 Registered: Jul-05 | hey guys i been talking to a guy today & he said the 18" model ONLY has a 6 spoke basket (unlike the spider legs shaped basket of the 12 & 15) so now im really lost figuring out if this is a older model or recent 1 no sticker on this sub since its backplate is cromed with just mmats etched on it my d\cam needs repairs so no pix right now ... |
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Gold Member Username: •cam•BC Canada Post Number: 1833 Registered: Nov-06 | I'm not always on your back because of who you are. You've just said some things that are untrue. I'm not giving input. You're right. I don't post when I don't know. If I had the software to model it properly, then I might have some input to give. I have designed and built a few, but I'm no authority. I do know that an optimum Vb for every sub of a given size, in every car, for every person is absurd, however. Just "giving it 4.5 cubes" for SPL is stupid, too. I'm sorry, man. It doesn't work like that. The problem is that too many people are giving opinions based on no fact, just opinion, or what other people have told them. If you want it straight from the guru, here ya go: http://www.hexibase.com/acoustics/articles/try_tuning_it_to.htm http://www.hexibase.com/acoustics/articles/enclosure_considerations_101.htm |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5291 Registered: Apr-06 | alright bro... think what you think i dont really care. im not gunna tell you whats right or wrong. My opinion most take it and most are happy if you dont like it ignore. |
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Gold Member Username: •cam•BC Canada Post Number: 1836 Registered: Nov-06 | No, we need facts, not opinions. Prove your opinion is fact. If people take opinions like that as fact, we're not very far ahead of, "My buddy knows car audio and he says that the Jackhammer is the greatest sub that has ever been made." See what I'm saying? That may have been the guy's opinion, but that didn't make it correct. |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5292 Registered: Apr-06 | the difference between that example and the current one is that i know what im talking about. even if you dont think i do. |
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Gold Member Username: •cam•BC Canada Post Number: 1839 Registered: Nov-06 | Ah, see that's the problem. You've proved that you don't really know much about acoustics and woofer loading by making the statements you have. This is not a matter of opinion. You may have some experience, but if you really knew what you were talking about, you wouldn't have proclaimed a perfect Vb for subs whose T/S parameters could vary greatly, along with the environments, and the individual listeners. So, 4.5 for SPL? Try that in a bunch of different cars, and it will yield different pressures in each one. Then try a different box, say 7 cubes, and see if the loudest (in regards to peak SPL) car is the same one with this box as it was with the 4.5 cube enclosure. We haven't even gotten into tuning and different box styles. It's not really a matter of opinion. |
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Gold Member Username: DrivingrecklessDD 9515f, 148.2 db Mov... Post Number: 5295 Registered: Apr-06 | to much to read.. |
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