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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 38 Registered: May-05 | Im building a ported box with square vents on the sides. there is a divider between the subs so its like 2 seperate boxes. i'll have one port on each box, the enclosure volume is 2.1ft cubed each. the vents are 3.5" wide, 14.5" high and there is a corner in the vents so they are each 29.4" long. i think this is tuned to 42Hz. Does this all sound right? will 42 Hz sound good and be loud? |
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Gold Member Username: InsearchofbassPost Number: 2022 Registered: Jun-04 | you are right 42 hz but the fact that there is a corner (if by corner you mean a 90 degree bend) will actually make your port tune slightly lower. Plus the fact that your saying the box is 2.10 cf. internal gives the assumption you have accounted for port and subwoofer displacement otherwise your internal air space will be less and your port tune higher as a result. |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 39 Registered: May-05 | how much should i take away for port and sub displacement? |
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Gold Member Username: InsearchofbassPost Number: 2049 Registered: Jun-04 | ill see if i can find you an article on the subject ok |
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Gold Member Username: InsearchofbassPost Number: 2050 Registered: Jun-04 | read this ok http://www.caraudioforum.com/vbb3/archive/index.php/t-97333.html |
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Gold Member Username: InsearchofbassPost Number: 2051 Registered: Jun-04 | heres another good article that may be easier to understand |
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Gold Member Username: InsearchofbassPost Number: 2052 Registered: Jun-04 | copy and paste the link in another window if it doesnt work.....keep reading and reread if you have to and do the math along with him and youll get it ...it might be hard to understand at first it was for me |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 40 Registered: May-05 | thanks for all the help man. |
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Gold Member Username: InsearchofbassPost Number: 2059 Registered: Jun-04 | your welcome |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 42 Registered: May-05 | any idea of what db i can hit with a nice box tuned to 42Hz with 2 Infinity 1230's? |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 43 Registered: May-05 | any idea? |
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Gold Member Username: InsearchofbassPost Number: 2209 Registered: Jun-04 | depends on alot of things they will be loud enough for you with decent power to them. What amp you drivin them with? |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 44 Registered: May-05 | an Infinity 310A |
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Gold Member Username: InsearchofbassPost Number: 2259 Registered: Jun-04 | from what i see that amp is only 4 ohms stable at max power if so your two infinity 4 ohm single coils will only be able to go 8 ohms bridged and 4 ohm bridged is only 116 watts rms according to the one site...do you have the literature to check if its only 4 ohms stable mono |
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New member Username: Saustin1988Post Number: 4 Registered: May-05 | i r sean |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 45 Registered: May-05 | if i run them in parallel its a 2 ohm load. that amp puts out like 200 and sum watts at 2 ohms |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 46 Registered: May-05 | the 310a is 312W rms at 2 ohms, sorry |
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Gold Member Username: InsearchofbassPost Number: 2263 Registered: Jun-04 | honestly dpending what type of box you get and cabin gain youll prob be in the low to mid 120 db's i metered one off of a bazooka 500 watt amp i think in a about a 1.5 cf sealed and it hit 126 db in a honda crx i think but they have good cabin gain |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 47 Registered: May-05 | yea, i like my subs. I wanna amp my speakers asap so i can turn the bass down and have the lows coming from my subs. my car rattles kinda bad tho so i wanna fix all that up. Im gonna use foam or somthing. |
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Gold Member Username: InsearchofbassPost Number: 2268 Registered: Jun-04 | you could try that fatmat or edead not sure of the price |
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Bronze Member Username: ShawnomakHB, SK Canada Post Number: 48 Registered: May-05 | yea, could go with that. what does that do btw, just stop rattling or does it have other purposes? |
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Gold Member Username: InsearchofbassPost Number: 2273 Registered: Jun-04 | stops rattling and in turn increases your spl in most cases |
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Silver Member Username: ShadylimitedxPgh, Pa Usa Post Number: 150 Registered: Apr-05 | is this the sean/shawn thread lol |